Patchwork D8202: exchange: turn on option that makes concurrent pushes work better

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Submitter phabricator
Date March 3, 2020, 6:51 p.m.
Message ID <fbbc9b931da2181fec0585f196c80550@localhost.localdomain>
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Permalink /patch/45438/
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phabricator - March 3, 2020, 6:51 p.m.
Closed by commit rHGedc8504bc26b: exchange: turn on option that makes concurrent pushes work better (authored by valentin.gatienbaron).
This revision was automatically updated to reflect the committed changes.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST UPDATE
  https://phab.mercurial-scm.org/D8202?vs=20410&id=20429

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D8202/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D8202

AFFECTED FILES
  mercurial/configitems.py
  mercurial/helptext/config.txt
  relnotes/next
  tests/common-pattern.py
  tests/test-acl.t
  tests/test-bookmarks-pushpull.t
  tests/test-clone-uncompressed.t
  tests/test-debugcommands.t
  tests/test-http-bad-server.t
  tests/test-http-protocol.t
  tests/test-http.t
  tests/test-infinitepush-ci.t
  tests/test-lfs-serve-access.t
  tests/test-lfs-test-server.t
  tests/test-push-race.t
  tests/test-ssh-bundle1.t
  tests/test-ssh-proto-unbundle.t
  tests/test-ssh-proto.t
  tests/test-ssh.t
  tests/test-wireproto-command-capabilities.t
  tests/test-wireproto-content-redirects.t

CHANGE DETAILS




To: valentin.gatienbaron, #hg-reviewers, pulkit, marmoute
Cc: marmoute, pulkit, mercurial-devel

Patch

diff --git a/tests/test-wireproto-content-redirects.t b/tests/test-wireproto-content-redirects.t
--- a/tests/test-wireproto-content-redirects.t
+++ b/tests/test-wireproto-content-redirects.t
@@ -66,9 +66,9 @@ 
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
-  s>     Content-Length: 2285\r\n
+  s>     Content-Length: 2308\r\n
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa5Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa5DnameHtarget-aHprotocolDhttpKsnirequired\xf4Ktlsversions\x82C1.2C1.3Duris\x81Shttp://example.com/Nv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa5Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa5DnameHtarget-aHprotocolDhttpKsnirequired\xf4Ktlsversions\x82C1.2C1.3Duris\x81Shttp://example.com/Nv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   (remote redirect target target-a is compatible) (tls1.2 !)
   (remote redirect target target-a requires unsupported TLS versions: 1.2, 1.3) (no-tls1.2 !)
   sending capabilities command
@@ -396,9 +396,9 @@ 
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
-  s>     Content-Length: 2312\r\n
+  s>     Content-Length: 2335\r\n
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa5Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x82\xa3DnameHtarget-aHprotocolDhttpDuris\x81Shttp://example.com/\xa3DnameHtarget-bHprotocolGunknownDuris\x81Vunknown://example.com/Nv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa5Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x82\xa3DnameHtarget-aHprotocolDhttpDuris\x81Shttp://example.com/\xa3DnameHtarget-bHprotocolGunknownDuris\x81Vunknown://example.com/Nv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   (remote redirect target target-a is compatible)
   (remote redirect target target-b uses unsupported protocol: unknown)
   sending capabilities command
@@ -731,9 +731,9 @@ 
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
-  s>     Content-Length: 2272\r\n
+  s>     Content-Length: 2295\r\n
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa5Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKsnirequired\xf5Duris\x81Thttps://example.com/Nv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa5Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKsnirequired\xf5Duris\x81Thttps://example.com/Nv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   (redirect target target-bad-tls requires SNI, which is unsupported)
   sending capabilities command
   s> setsockopt(6, 1, 1) -> None (?)
@@ -1055,9 +1055,9 @@ 
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-cbor\r\n
-  s>     Content-Length: 2278\r\n
+  s>     Content-Length: 2301\r\n
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa5Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKtlsversions\x82B42B39Duris\x81Thttps://example.com/Nv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa5Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogHredirect\xa2Fhashes\x82Fsha256Dsha1Gtargets\x81\xa4DnameNtarget-bad-tlsHprotocolEhttpsKtlsversions\x82B42B39Duris\x81Thttps://example.com/Nv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   (remote redirect target target-bad-tls requires unsupported TLS versions: 39, 42)
   sending capabilities command
   s> setsockopt(6, 1, 1) -> None (?)
diff --git a/tests/test-wireproto-command-capabilities.t b/tests/test-wireproto-command-capabilities.t
--- a/tests/test-wireproto-command-capabilities.t
+++ b/tests/test-wireproto-command-capabilities.t
@@ -150,7 +150,7 @@ 
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa0Nv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa0Nv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   cbor> [
     {
       b'apibase': b'api/',
@@ -190,7 +190,7 @@ 
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa0Nv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa0Nv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   cbor> [
     {
       b'apibase': b'api/',
@@ -223,7 +223,7 @@ 
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogNv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogNv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   cbor> [
     {
       b'apibase': b'api/',
@@ -484,7 +484,7 @@ 
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogNv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogNv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   sending capabilities command
   s> setsockopt(6, 1, 1) -> None (?)
   s>     POST /api/exp-http-v2-0003/ro/capabilities HTTP/1.1\r\n
diff --git a/tests/test-ssh.t b/tests/test-ssh.t
--- a/tests/test-ssh.t
+++ b/tests/test-ssh.t
@@ -513,7 +513,7 @@ 
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
-  remote: 440 (sshv1 !)
+  remote: 463 (sshv1 !)
   protocol upgraded to exp-ssh-v2-0003 (sshv2 !)
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1 (sshv1 !)
@@ -532,7 +532,7 @@ 
   no changes found
   devel-peer-request: getbundle
   devel-peer-request:   bookmarks: 1 bytes
-  devel-peer-request:   bundlecaps: 266 bytes
+  devel-peer-request:   bundlecaps: 289 bytes
   devel-peer-request:   cg: 1 bytes
   devel-peer-request:   common: 122 bytes
   devel-peer-request:   heads: 122 bytes
diff --git a/tests/test-ssh-proto.t b/tests/test-ssh-proto.t
--- a/tests/test-ssh-proto.t
+++ b/tests/test-ssh-proto.t
@@ -64,7 +64,7 @@ 
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
-  remote: 440
+  remote: 463
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
@@ -86,8 +86,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
 
 `hg debugserve --sshstdio` works
@@ -96,7 +96,7 @@ 
   $ hg debugserve --sshstdio << EOF
   > hello
   > EOF
-  440
+  463
   capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
 I/O logging works
@@ -106,24 +106,24 @@ 
   > EOF
   e> flush() -> None
   o> write(4) -> 4:
-  o>     440\n
-  o> write(440) -> 440:
+  o>     463\n
+  o> write(463) -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
-  440
+  463
   capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> flush() -> None
 
   $ hg debugserve --sshstdio --logiofile $TESTTMP/io << EOF
   > hello
   > EOF
-  440
+  463
   capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
   $ cat $TESTTMP/io
   e> flush() -> None
   o> write(4) -> 4:
-  o>     440\n
-  o> write(440) -> 440:
+  o>     463\n
+  o> write(463) -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> flush() -> None
 
@@ -149,8 +149,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -187,7 +187,7 @@ 
   remote: banner: line 7
   remote: banner: line 8
   remote: banner: line 9
-  remote: 440
+  remote: 463
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
@@ -245,8 +245,8 @@ 
   o> readline() -> 15:
   o>     banner: line 9\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -297,12 +297,12 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
+  o>     463\n
   i> write(98) -> 98:
   i>     between\n
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
-  o> readline() -> 440:
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -316,7 +316,7 @@ 
   sending hello command
   sending between command
   remote: 0
-  remote: 440
+  remote: 463
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
@@ -365,8 +365,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -390,7 +390,7 @@ 
   remote: 0
   remote: 0
   remote: 0
-  remote: 440
+  remote: 463
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
@@ -447,8 +447,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -494,8 +494,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -539,8 +539,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -609,8 +609,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
 
 Incomplete dictionary send
@@ -691,8 +691,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -725,8 +725,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -768,8 +768,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -797,8 +797,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(105) -> 105:
   i>     between\n
@@ -838,8 +838,8 @@ 
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -887,8 +887,8 @@ 
   o> readline() -> 41:
   o>     68986213bd4485ea51533535e3fc9e78007a711f\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -914,7 +914,7 @@ 
   o> readline() -> 41:
   o>     68986213bd4485ea51533535e3fc9e78007a711f\n
   o> readline() -> 4:
-  o>     440\n
+  o>     463\n
 
 Send an upgrade request to a server that doesn't support that command
 
@@ -943,8 +943,8 @@ 
   i>     pairs 81\n
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -962,7 +962,7 @@ 
   sending hello command
   sending between command
   remote: 0
-  remote: 440
+  remote: 463
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
@@ -1005,8 +1005,8 @@ 
   o> readline() -> 44:
   o>     upgraded this-is-some-token exp-ssh-v2-0003\n
   o> readline() -> 4:
-  o>     439\n
-  o> readline() -> 440:
+  o>     462\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
 
   $ cd ..
@@ -1062,6 +1062,8 @@ 
     changegroup
       01
       02
+    checkheads
+      related
     digests
       md5
       sha1
@@ -1112,14 +1114,14 @@ 
   o> readline() -> 44:
   o>     upgraded this-is-some-token exp-ssh-v2-0003\n
   o> readline() -> 4:
-  o>     439\n
-  o> readline() -> 440:
+  o>     462\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     424\n
-  o> readline() -> 424:
+  o>     447\n
+  o> readline() -> 447:
   o>     capabilities: branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
 
 Multiple upgrades is not allowed
@@ -1150,8 +1152,8 @@ 
   o> readline() -> 44:
   o>     upgraded this-is-some-token exp-ssh-v2-0003\n
   o> readline() -> 4:
-  o>     439\n
-  o> readline() -> 440:
+  o>     462\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(45) -> 45:
   i>     upgrade another-token proto=irrelevant\n
@@ -1222,8 +1224,8 @@ 
   i> write(6) -> 6:
   i>     hello\n
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   i> write(98) -> 98:
   i>     between\n
@@ -1341,8 +1343,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1379,8 +1381,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
@@ -1429,8 +1431,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1459,8 +1461,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
@@ -1490,8 +1492,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1523,8 +1525,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
@@ -1557,8 +1559,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1593,8 +1595,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
@@ -1632,8 +1634,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1672,8 +1674,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending pushkey command
@@ -1724,8 +1726,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1757,8 +1759,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
@@ -1807,8 +1809,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1845,8 +1847,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
@@ -1884,8 +1886,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1920,8 +1922,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
@@ -1957,8 +1959,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1990,8 +1992,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending listkeys command
@@ -2028,8 +2030,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -2069,8 +2071,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending pushkey command
@@ -2135,8 +2137,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -2175,8 +2177,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending batch with 3 sub-commands
diff --git a/tests/test-ssh-proto-unbundle.t b/tests/test-ssh-proto-unbundle.t
--- a/tests/test-ssh-proto-unbundle.t
+++ b/tests/test-ssh-proto-unbundle.t
@@ -56,8 +56,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -109,8 +109,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -235,8 +235,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -293,8 +293,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -359,8 +359,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -418,8 +418,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -485,8 +485,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -543,8 +543,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -609,8 +609,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -668,8 +668,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -735,8 +735,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -796,8 +796,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -865,8 +865,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -923,8 +923,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -989,8 +989,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1050,8 +1050,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -1119,8 +1119,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1180,8 +1180,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -1255,8 +1255,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1314,8 +1314,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -1382,8 +1382,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1441,8 +1441,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -1511,8 +1511,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1572,8 +1572,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -1650,8 +1650,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1715,8 +1715,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -1788,8 +1788,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1843,8 +1843,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
@@ -1918,8 +1918,8 @@ 
   i>     0000000000000000000000000000000000000000-0000000000000000000000000000000000000000
   i> flush() -> None
   o> readline() -> 4:
-  o>     440\n
-  o> readline() -> 440:
+  o>     463\n
+  o> readline() -> 463:
   o>     capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash\n
   o> readline() -> 2:
   o>     1\n
@@ -1977,8 +1977,8 @@ 
   o> readline() -> 62:
   o>     upgraded * exp-ssh-v2-0003\n (glob)
   o> readline() -> 4:
-  o>     439\n
-  o> read(439) -> 439: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  o>     462\n
+  o> read(462) -> 462: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   o> read(1) -> 1:
   o>     \n
   sending unbundle command
diff --git a/tests/test-ssh-bundle1.t b/tests/test-ssh-bundle1.t
--- a/tests/test-ssh-bundle1.t
+++ b/tests/test-ssh-bundle1.t
@@ -482,7 +482,7 @@ 
   sending upgrade request: * proto=exp-ssh-v2-0003 (glob) (sshv2 !)
   sending hello command
   sending between command
-  remote: 440 (sshv1 !)
+  remote: 463 (sshv1 !)
   protocol upgraded to exp-ssh-v2-0003 (sshv2 !)
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1 (sshv1 !)
diff --git a/tests/test-push-race.t b/tests/test-push-race.t
--- a/tests/test-push-race.t
+++ b/tests/test-push-race.t
@@ -119,11 +119,11 @@ 
 
 #testcases strict unrelated
 
-#if unrelated
+#if strict
 
   $ cat >> $HGRCPATH << EOF
   > [server]
-  > concurrent-push-mode = check-related
+  > concurrent-push-mode = strict
   > EOF
 
 #endif
diff --git a/tests/test-lfs-test-server.t b/tests/test-lfs-test-server.t
--- a/tests/test-lfs-test-server.t
+++ b/tests/test-lfs-test-server.t
@@ -296,7 +296,7 @@ 
   bundle2-output-bundle: "HG20", 5 parts total
   bundle2-output-part: "replycaps" * bytes payload (glob)
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
@@ -304,7 +304,7 @@ 
   bundle2-input-part: total payload size * (glob)
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
diff --git a/tests/test-lfs-serve-access.t b/tests/test-lfs-serve-access.t
--- a/tests/test-lfs-serve-access.t
+++ b/tests/test-lfs-serve-access.t
@@ -66,7 +66,7 @@ 
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 400 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
-  $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
+  $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Acheckheads%253Drelated%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 400 - (glob)
 
   $ rm -f $TESTTMP/access.log $TESTTMP/errors.log
@@ -166,7 +166,7 @@ 
   $LOCALIP - - [$LOGDATE$] "POST /missing/objects/batch HTTP/1.1" 404 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
-  $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
+  $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Acheckheads%253Drelated%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /subdir/mount/point/.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /subdir/mount/point/.hg/lfs/objects/f03217a32529a28a42d03b1244fe09b6e0f9fd06d7b966d4d50567be2abe6c0e HTTP/1.1" 200 - (glob)
 
@@ -312,7 +312,7 @@ 
   $ cat $TESTTMP/access.log
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
-  $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
+  $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Acheckheads%253Drelated%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D392c05922088bacf8e68a6939b480017afbf245d x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
@@ -331,7 +331,7 @@ 
   $LOCALIP - - [$LOGDATE$] "PUT /.hg/lfs/objects/b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c HTTP/1.1" 422 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D392c05922088bacf8e68a6939b480017afbf245d x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
-  $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=525251863cad618e55d483555f3d00a2ca99597e&heads=506bf3d83f78c54b89e81c6411adee19fdf02156+525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
+  $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Acheckheads%253Drelated%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=525251863cad618e55d483555f3d00a2ca99597e&heads=506bf3d83f78c54b89e81c6411adee19fdf02156+525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d HTTP/1.1" 500 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
@@ -482,7 +482,7 @@ 
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 401 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
-  $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=506bf3d83f78c54b89e81c6411adee19fdf02156+525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
+  $LOCALIP - - [$LOGDATE$] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bookmarks=1&bundlecaps=HG20%2Cbundle2%3DHG20%250Abookmarks%250Achangegroup%253D01%252C02%252C03%250Acheckheads%253Drelated%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Aphases%253Dheads%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps%250Arev-branch-cache%250Astream%253Dv2&cg=1&common=0000000000000000000000000000000000000000&heads=506bf3d83f78c54b89e81c6411adee19fdf02156+525251863cad618e55d483555f3d00a2ca99597e&listkeys=bookmarks&phases=1 x-hgproto-1:0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 401 - (glob)
   $LOCALIP - - [$LOGDATE$] "POST /.git/info/lfs/objects/batch HTTP/1.1" 200 - (glob)
   $LOCALIP - - [$LOGDATE$] "GET /.hg/lfs/objects/276f73cfd75f9fb519810df5f5d96d6594ca2521abd86cbcd92122f7d51a1f3d HTTP/1.1" 200 - (glob)
diff --git a/tests/test-infinitepush-ci.t b/tests/test-infinitepush-ci.t
--- a/tests/test-infinitepush-ci.t
+++ b/tests/test-infinitepush-ci.t
@@ -50,7 +50,7 @@ 
       6cb0989601f1  added a
 
   $ scratchnodes
-  6cb0989601f1fb5805238edfb16f3606713d9a0b a4c202c147a9c4bb91bbadb56321fc5f3950f7f2
+  6cb0989601f1fb5805238edfb16f3606713d9a0b 3b414252ff8acab801318445d88ff48faf4a28c3
 
 Understanding how data is stored on the bundlestore in server
 -------------------------------------------------------------
@@ -61,8 +61,8 @@ 
   index
 
 filebundlestore stores the bundles
-  $ ls ../repo/.hg/scratchbranches/filebundlestore/a4/c2/
-  a4c202c147a9c4bb91bbadb56321fc5f3950f7f2
+  $ ls ../repo/.hg/scratchbranches/filebundlestore/3b/41/
+  3b414252ff8acab801318445d88ff48faf4a28c3
 
 index/nodemap stores a map of node id and file in which bundle is stored in filebundlestore
   $ ls ../repo/.hg/scratchbranches/index/
@@ -82,7 +82,7 @@ 
 Applying the changeset from the bundlestore
 --------------------------------------------
 
-  $ hg unbundle .hg/scratchbranches/filebundlestore/a4/c2/a4c202c147a9c4bb91bbadb56321fc5f3950f7f2
+  $ hg unbundle .hg/scratchbranches/filebundlestore/3b/41/3b414252ff8acab801318445d88ff48faf4a28c3
   adding changesets
   adding manifests
   adding file changes
@@ -133,9 +133,9 @@ 
 
 Both of the new changesets are stored in a single bundle-file
   $ scratchnodes
-  6cb0989601f1fb5805238edfb16f3606713d9a0b a4c202c147a9c4bb91bbadb56321fc5f3950f7f2
-  bf8a6e3011b345146bbbedbcb1ebd4837571492a ee41a41cefb7817cbfb235b4f6e9f27dbad6ca1f
-  eaba929e866c59bc9a6aada5a9dd2f6990db83c0 ee41a41cefb7817cbfb235b4f6e9f27dbad6ca1f
+  6cb0989601f1fb5805238edfb16f3606713d9a0b 3b414252ff8acab801318445d88ff48faf4a28c3
+  bf8a6e3011b345146bbbedbcb1ebd4837571492a 239585f5e61f0c09ce7106bdc1097bff731738f4
+  eaba929e866c59bc9a6aada5a9dd2f6990db83c0 239585f5e61f0c09ce7106bdc1097bff731738f4
 
 Pushing more changesets to the server
 -------------------------------------
@@ -158,11 +158,11 @@ 
 
 Sneak peek into the bundlestore at the server
   $ scratchnodes
-  1bb96358eda285b536c6d1c66846a7cdb2336cea 57e00c0d4f26e2a2a72b751b63d9abc4f3eb28e7
-  6cb0989601f1fb5805238edfb16f3606713d9a0b a4c202c147a9c4bb91bbadb56321fc5f3950f7f2
-  b4e4bce660512ad3e71189e14588a70ac8e31fef 57e00c0d4f26e2a2a72b751b63d9abc4f3eb28e7
-  bf8a6e3011b345146bbbedbcb1ebd4837571492a 57e00c0d4f26e2a2a72b751b63d9abc4f3eb28e7
-  eaba929e866c59bc9a6aada5a9dd2f6990db83c0 57e00c0d4f26e2a2a72b751b63d9abc4f3eb28e7
+  1bb96358eda285b536c6d1c66846a7cdb2336cea 98fbae0016662521b0007da1b7bc349cd3caacd1
+  6cb0989601f1fb5805238edfb16f3606713d9a0b 3b414252ff8acab801318445d88ff48faf4a28c3
+  b4e4bce660512ad3e71189e14588a70ac8e31fef 98fbae0016662521b0007da1b7bc349cd3caacd1
+  bf8a6e3011b345146bbbedbcb1ebd4837571492a 98fbae0016662521b0007da1b7bc349cd3caacd1
+  eaba929e866c59bc9a6aada5a9dd2f6990db83c0 98fbae0016662521b0007da1b7bc349cd3caacd1
 
 Checking if `hg pull` pulls something or `hg incoming` shows something
 -----------------------------------------------------------------------
@@ -309,14 +309,14 @@ 
 
   $ cd ../repo
   $ scratchnodes
-  1bb96358eda285b536c6d1c66846a7cdb2336cea 0a6e70ecd5b98d22382f69b93909f557ac6a9927
-  6cb0989601f1fb5805238edfb16f3606713d9a0b a4c202c147a9c4bb91bbadb56321fc5f3950f7f2
-  9b42578d44473575994109161430d65dd147d16d 0a6e70ecd5b98d22382f69b93909f557ac6a9927
-  b4e4bce660512ad3e71189e14588a70ac8e31fef 0a6e70ecd5b98d22382f69b93909f557ac6a9927
-  bf8a6e3011b345146bbbedbcb1ebd4837571492a 0a6e70ecd5b98d22382f69b93909f557ac6a9927
-  eaba929e866c59bc9a6aada5a9dd2f6990db83c0 0a6e70ecd5b98d22382f69b93909f557ac6a9927
+  1bb96358eda285b536c6d1c66846a7cdb2336cea 280a46a259a268f0e740c81c5a7751bdbfaec85f
+  6cb0989601f1fb5805238edfb16f3606713d9a0b 3b414252ff8acab801318445d88ff48faf4a28c3
+  9b42578d44473575994109161430d65dd147d16d 280a46a259a268f0e740c81c5a7751bdbfaec85f
+  b4e4bce660512ad3e71189e14588a70ac8e31fef 280a46a259a268f0e740c81c5a7751bdbfaec85f
+  bf8a6e3011b345146bbbedbcb1ebd4837571492a 280a46a259a268f0e740c81c5a7751bdbfaec85f
+  eaba929e866c59bc9a6aada5a9dd2f6990db83c0 280a46a259a268f0e740c81c5a7751bdbfaec85f
 
-  $ hg unbundle .hg/scratchbranches/filebundlestore/0a/6e/0a6e70ecd5b98d22382f69b93909f557ac6a9927
+  $ hg unbundle .hg/scratchbranches/filebundlestore/28/0a/280a46a259a268f0e740c81c5a7751bdbfaec85f
   adding changesets
   adding manifests
   adding file changes
@@ -392,13 +392,13 @@ 
   $ cd ../repo
 
   $ scratchnodes
-  1bb96358eda285b536c6d1c66846a7cdb2336cea 0a6e70ecd5b98d22382f69b93909f557ac6a9927
-  6cb0989601f1fb5805238edfb16f3606713d9a0b a4c202c147a9c4bb91bbadb56321fc5f3950f7f2
+  1bb96358eda285b536c6d1c66846a7cdb2336cea 280a46a259a268f0e740c81c5a7751bdbfaec85f
+  6cb0989601f1fb5805238edfb16f3606713d9a0b 3b414252ff8acab801318445d88ff48faf4a28c3
   99949238d9ac7f2424a33a46dface6f866afd059 090a24fe63f31d3b4bee714447f835c8c362ff57
-  9b42578d44473575994109161430d65dd147d16d 0a6e70ecd5b98d22382f69b93909f557ac6a9927
-  b4e4bce660512ad3e71189e14588a70ac8e31fef 0a6e70ecd5b98d22382f69b93909f557ac6a9927
-  bf8a6e3011b345146bbbedbcb1ebd4837571492a 0a6e70ecd5b98d22382f69b93909f557ac6a9927
-  eaba929e866c59bc9a6aada5a9dd2f6990db83c0 0a6e70ecd5b98d22382f69b93909f557ac6a9927
+  9b42578d44473575994109161430d65dd147d16d 280a46a259a268f0e740c81c5a7751bdbfaec85f
+  b4e4bce660512ad3e71189e14588a70ac8e31fef 280a46a259a268f0e740c81c5a7751bdbfaec85f
+  bf8a6e3011b345146bbbedbcb1ebd4837571492a 280a46a259a268f0e740c81c5a7751bdbfaec85f
+  eaba929e866c59bc9a6aada5a9dd2f6990db83c0 280a46a259a268f0e740c81c5a7751bdbfaec85f
 
   $ hg glog
   o  6:9b42578d4447 added f
diff --git a/tests/test-http.t b/tests/test-http.t
--- a/tests/test-http.t
+++ b/tests/test-http.t
@@ -320,20 +320,20 @@ 
   list of changesets:
   7f4e523d01f2cc3765ac8934da3d14db775ff872
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   sending unbundle command
-  sending 1013 bytes
+  sending 1040 bytes
   devel-peer-request: POST http://localhost:$HGPORT2/?cmd=unbundle
-  devel-peer-request:   Content-length 1013
+  devel-peer-request:   Content-length 1040
   devel-peer-request:   Content-type application/mercurial-0.1
   devel-peer-request:   Vary X-HgArg-1,X-HgProto-1
   devel-peer-request:   X-hgproto-1 0.1 0.2 comp=$USUAL_COMPRESSIONS$ partial-pull
   devel-peer-request:   16 bytes of commands arguments in headers
-  devel-peer-request:   1013 bytes of data
+  devel-peer-request:   1040 bytes of data
   devel-peer-request:   finished in *.???? seconds (200) (glob)
   bundle2-input-bundle: no-transaction
   bundle2-input-part: "reply:changegroup" (advisory) (params: 0 advisory) supported
diff --git a/tests/test-http-protocol.t b/tests/test-http-protocol.t
--- a/tests/test-http-protocol.t
+++ b/tests/test-http-protocol.t
@@ -321,7 +321,7 @@ 
   s>     Content-Type: application/mercurial-cbor\r\n
   s>     Content-Length: *\r\n (glob)
   s>     \r\n
-  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogNv1capabilitiesY\x01\xe0batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
+  s>     \xa3GapibaseDapi/Dapis\xa1Pexp-http-v2-0003\xa4Hcommands\xacIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullMchangesetdata\xa2Dargs\xa2Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84IbookmarksGparentsEphaseHrevisionIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullHfiledata\xa2Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x83HlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDpath\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullIfilesdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x84NfirstchangesetHlinknodeGparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDdictIrevisions\xa2Hrequired\xf5DtypeDlistKpermissions\x81DpullTrecommendedbatchsize\x19\xc3PEheads\xa2Dargs\xa1Jpubliconly\xa3Gdefault\xf4Hrequired\xf4DtypeDboolKpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\xa3Gdefault\x80Hrequired\xf4DtypeDlistKpermissions\x81DpullHlistkeys\xa2Dargs\xa1Inamespace\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullFlookup\xa2Dargs\xa1Ckey\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullLmanifestdata\xa3Dargs\xa4Ffields\xa4Gdefault\xd9\x01\x02\x80Hrequired\xf4DtypeCsetKvalidvalues\xd9\x01\x02\x82GparentsHrevisionKhaveparents\xa3Gdefault\xf4Hrequired\xf4DtypeDboolEnodes\xa2Hrequired\xf5DtypeDlistDtree\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpullTrecommendedbatchsize\x1a\x00\x01\x86\xa0Gpushkey\xa2Dargs\xa4Ckey\xa2Hrequired\xf5DtypeEbytesInamespace\xa2Hrequired\xf5DtypeEbytesCnew\xa2Hrequired\xf5DtypeEbytesCold\xa2Hrequired\xf5DtypeEbytesKpermissions\x81DpushPrawstorefiledata\xa2Dargs\xa2Efiles\xa2Hrequired\xf5DtypeDlistJpathfilter\xa3Gdefault\xf6Hrequired\xf4DtypeDlistKpermissions\x81DpullQframingmediatypes\x81X&application/mercurial-exp-framing-0006Rpathfilterprefixes\xd9\x01\x02\x82Epath:Lrootfilesin:Nrawrepoformats\x83LgeneraldeltaHrevlogv1LsparserevlogNv1capabilitiesY\x01\xf7batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   sending heads command
   s> setsockopt(6, 1, 1) -> None (?)
   s>     POST /api/exp-http-v2-0003/ro/heads HTTP/1.1\r\n
@@ -437,7 +437,7 @@ 
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
-  s>     Content-Length: 480\r\n
+  s>     Content-Length: 503\r\n
   s>     \r\n
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
 
@@ -474,7 +474,7 @@ 
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
-  s>     Content-Length: 480\r\n
+  s>     Content-Length: 503\r\n
   s>     \r\n
   real URL is http://$LOCALIP:$HGPORT/redirected (glob)
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
@@ -745,7 +745,7 @@ 
   s>     Server: testing stub value\r\n
   s>     Date: $HTTP_DATE$\r\n
   s>     Content-Type: application/mercurial-0.1\r\n
-  s>     Content-Length: 480\r\n
+  s>     Content-Length: 503\r\n
   s>     \r\n
   real URL is http://$LOCALIP:$HGPORT/redirected (glob)
   s>     batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset compression=$BUNDLE2_COMPRESSIONS$ getbundle httpheader=1024 httpmediatype=0.1rx,0.1tx,0.2tx known lookup pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
diff --git a/tests/test-http-bad-server.t b/tests/test-http-bad-server.t
--- a/tests/test-http-bad-server.t
+++ b/tests/test-http-bad-server.t
@@ -15,6 +15,8 @@ 
   > sparse-revlog = no
   > [devel]
   > legacy.exchange = phases
+  > [server]
+  > concurrent-push-mode = strict
   > EOF
 
   $ hg init server0
diff --git a/tests/test-debugcommands.t b/tests/test-debugcommands.t
--- a/tests/test-debugcommands.t
+++ b/tests/test-debugcommands.t
@@ -615,6 +615,8 @@ 
     changegroup
       01
       02
+    checkheads
+      related
     digests
       md5
       sha1
@@ -650,7 +652,7 @@ 
   devel-peer-request:   pairs: 81 bytes
   sending hello command
   sending between command
-  remote: 440
+  remote: 463
   remote: capabilities: batch branchmap $USUAL_BUNDLE2_CAPS$ changegroupsubset getbundle known lookup protocaps pushkey streamreqs=generaldelta,revlogv1,sparserevlog unbundle=HG10GZ,HG10BZ,HG10UN unbundlehash
   remote: 1
   devel-peer-request: protocaps
diff --git a/tests/test-clone-uncompressed.t b/tests/test-clone-uncompressed.t
--- a/tests/test-clone-uncompressed.t
+++ b/tests/test-clone-uncompressed.t
@@ -54,6 +54,8 @@ 
     changegroup
       01
       02
+    checkheads
+      related
     digests
       md5
       sha1
@@ -120,6 +122,8 @@ 
     changegroup
       01
       02
+    checkheads
+      related
     digests
       md5
       sha1
diff --git a/tests/test-bookmarks-pushpull.t b/tests/test-bookmarks-pushpull.t
--- a/tests/test-bookmarks-pushpull.t
+++ b/tests/test-bookmarks-pushpull.t
@@ -129,10 +129,10 @@ 
   bundle2-output: bundle parameter: 
   bundle2-output: start of parts
   bundle2-output: bundle part: "replycaps"
-  bundle2-output-part: "replycaps" 222 bytes payload
+  bundle2-output-part: "replycaps" 241 bytes payload
   bundle2-output: part 0: "REPLYCAPS"
   bundle2-output: header chunk size: 16
-  bundle2-output: payload chunk size: 222
+  bundle2-output: payload chunk size: 241
   bundle2-output: closing payload chunk
   bundle2-output: bundle part: "check:bookmarks"
   bundle2-output-part: "check:bookmarks" 23 bytes payload
@@ -162,9 +162,9 @@ 
   bundle2-input: part parameters: 0
   bundle2-input: found a handler for part replycaps
   bundle2-input-part: "replycaps" supported
-  bundle2-input: payload chunk size: 222
+  bundle2-input: payload chunk size: 241
   bundle2-input: payload chunk size: 0
-  bundle2-input-part: total payload size 222
+  bundle2-input-part: total payload size 241
   bundle2-input: part header size: 22
   bundle2-input: part type: "CHECK:BOOKMARKS"
   bundle2-input: part id: "1"
@@ -241,10 +241,10 @@ 
   bundle2-output: bundle parameter: 
   bundle2-output: start of parts
   bundle2-output: bundle part: "replycaps"
-  bundle2-output-part: "replycaps" 222 bytes payload
+  bundle2-output-part: "replycaps" 241 bytes payload
   bundle2-output: part 0: "REPLYCAPS"
   bundle2-output: header chunk size: 16
-  bundle2-output: payload chunk size: 222
+  bundle2-output: payload chunk size: 241
   bundle2-output: closing payload chunk
   bundle2-output: bundle part: "check:bookmarks"
   bundle2-output-part: "check:bookmarks" 23 bytes payload
@@ -275,9 +275,9 @@ 
   bundle2-input: part parameters: 0
   bundle2-input: found a handler for part replycaps
   bundle2-input-part: "replycaps" supported
-  bundle2-input: payload chunk size: 222
+  bundle2-input: payload chunk size: 241
   bundle2-input: payload chunk size: 0
-  bundle2-input-part: total payload size 222
+  bundle2-input-part: total payload size 241
   bundle2-input: part header size: 22
   bundle2-input: part type: "CHECK:BOOKMARKS"
   bundle2-input: part id: "1"
diff --git a/tests/test-acl.t b/tests/test-acl.t
--- a/tests/test-acl.t
+++ b/tests/test-acl.t
@@ -109,17 +109,17 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
@@ -167,6 +167,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -174,18 +175,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -234,6 +236,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -241,18 +244,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -311,6 +315,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -318,18 +323,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -379,6 +385,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -386,18 +393,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -452,6 +460,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -459,18 +468,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -522,6 +532,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -529,18 +540,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -597,6 +609,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -604,18 +617,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -669,6 +683,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -676,18 +691,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -742,27 +758,29 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   1 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   bundle2-output-bundle: "HG20", 7 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:bookmarks" 37 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-output-part: "bookmarks" 37 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:bookmarks" supported
   bundle2-input-part: total payload size 37
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -828,27 +846,29 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   1 changesets found
   list of changesets:
   ef1ea85a6374b77d6da9dcda9541f498f2d17df7
   bundle2-output-bundle: "HG20", 7 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:bookmarks" 37 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-output-part: "bookmarks" 37 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:bookmarks" supported
   bundle2-input-part: total payload size 37
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -914,6 +934,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -921,18 +942,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -998,6 +1020,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -1005,18 +1028,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1079,6 +1103,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -1086,18 +1111,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1155,6 +1181,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -1162,18 +1189,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1242,6 +1270,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -1249,18 +1278,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1330,6 +1360,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -1337,18 +1368,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1414,6 +1446,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -1421,18 +1454,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1494,6 +1528,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -1501,18 +1536,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1579,6 +1615,7 @@ 
   listing keys for "phases"
   checking for updated bookmarks
   listing keys for "bookmarks"
+  invalid branch cache (served): tip differs
   listing keys for "bookmarks"
   3 changesets found
   list of changesets:
@@ -1586,18 +1623,19 @@ 
   f9cafe1212c8c6fa1120d14a556e18cc44ff8bdd
   911600dab2ae7a9baff75958b84fe606851ce955
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 24 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 24 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 24
-  bundle2-input-part: "check:heads" supported
+  bundle2-input-part: "check:updated-heads" supported
   bundle2-input-part: total payload size 20
+  invalid branch cache (served): tip differs
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1707,18 +1745,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1793,18 +1831,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1871,18 +1909,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -1945,18 +1983,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -2013,18 +2051,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -2104,18 +2142,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -2194,18 +2232,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -2267,18 +2305,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
@@ -2351,18 +2389,18 @@ 
   911600dab2ae7a9baff75958b84fe606851ce955
   e8fc755d4d8217ee5b0c2bb41558c40d43b92c01
   bundle2-output-bundle: "HG20", 5 parts total
-  bundle2-output-part: "replycaps" 205 bytes payload
+  bundle2-output-part: "replycaps" 224 bytes payload
   bundle2-output-part: "check:phases" 48 bytes payload
-  bundle2-output-part: "check:heads" streamed payload
+  bundle2-output-part: "check:updated-heads" streamed payload
   bundle2-output-part: "changegroup" (params: 1 mandatory) streamed payload
   bundle2-output-part: "phase-heads" 48 bytes payload
   bundle2-input-bundle: with-transaction
   bundle2-input-part: "replycaps" supported
-  bundle2-input-part: total payload size 205
+  bundle2-input-part: total payload size 224
   bundle2-input-part: "check:phases" supported
   bundle2-input-part: total payload size 48
-  bundle2-input-part: "check:heads" supported
-  bundle2-input-part: total payload size 20
+  bundle2-input-part: "check:updated-heads" supported
+  bundle2-input-part: total payload size 40
   bundle2-input-part: "changegroup" (params: 1 mandatory) supported
   adding changesets
   add changeset ef1ea85a6374
diff --git a/tests/common-pattern.py b/tests/common-pattern.py
--- a/tests/common-pattern.py
+++ b/tests/common-pattern.py
@@ -12,6 +12,7 @@ 
         br'bundlecaps=HG20%2Cbundle2%3DHG20%250A'
         br'bookmarks%250A'
         br'changegroup%253D01%252C02%250A'
+        br'checkheads%253Drelated%250A'
         br'digests%253Dmd5%252Csha1%252Csha512%250A'
         br'error%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250A'
         br'hgtagsfnodes%250A'
@@ -28,6 +29,7 @@ 
         br'bundlecaps=HG20%2Cbundle2%3DHG20%250A'
         br'bookmarks%250A'
         br'changegroup%253D01%252C02%250A'
+        br'checkheads%3Drelated%0A'
         br'digests%253Dmd5%252Csha1%252Csha512%250A'
         br'error%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250A'
         br'hgtagsfnodes%250A'
@@ -43,6 +45,7 @@ 
         br'bundle2=HG20%0A'
         br'bookmarks%0A'
         br'changegroup%3D01%2C02%0A'
+        br'checkheads%3Drelated%0A'
         br'digests%3Dmd5%2Csha1%2Csha512%0A'
         br'error%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0A'
         br'hgtagsfnodes%0A'
@@ -60,6 +63,7 @@ 
         br'bundle2=HG20%0A'
         br'bookmarks%0A'
         br'changegroup%3D01%2C02%0A'
+        br'checkheads%3Drelated%0A'
         br'digests%3Dmd5%2Csha1%2Csha512%0A'
         br'error%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0A'
         br'hgtagsfnodes%0A'
diff --git a/relnotes/next b/relnotes/next
--- a/relnotes/next
+++ b/relnotes/next
@@ -43,6 +43,11 @@ 
 
  * Prevent pushes of divergent bookmarks (foo@remote)
 
+ * The push error "remote repository changed while pushing - please
+   try again" now only happens when a concurrent push changed related
+   heads (instead of when a concurrent pushed any revision).
+
+
 == Backwards Compatibility Changes ==
 
  * When `hg rebase` pauses for merge conflict resolution, the working
diff --git a/mercurial/helptext/config.txt b/mercurial/helptext/config.txt
--- a/mercurial/helptext/config.txt
+++ b/mercurial/helptext/config.txt
@@ -2006,9 +2006,9 @@ 
     Level of allowed race condition between two pushing clients.
 
     - 'strict': push is abort if another client touched the repository
-      while the push was preparing. (default)
+      while the push was preparing.
     - 'check-related': push is only aborted if it affects head that got also
-      affected while the push was preparing.
+      affected while the push was preparing. (default since 5.4)
 
     'check-related' only takes effect for compatible clients (version
     4.3 and later). Older clients will use 'strict'.
diff --git a/mercurial/configitems.py b/mercurial/configitems.py
--- a/mercurial/configitems.py
+++ b/mercurial/configitems.py
@@ -1116,7 +1116,7 @@ 
     b'server', b'compressionengines', default=list,
 )
 coreconfigitem(
-    b'server', b'concurrent-push-mode', default=b'strict',
+    b'server', b'concurrent-push-mode', default=b'check-related',
 )
 coreconfigitem(
     b'server', b'disablefullbundle', default=False,