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From: Andrew Dunstan <andrew@dunslane.net>
Date: Thu, 2 Jul 2026 15:41:59 -0400
Message-ID: 
 <CAD5tBc+GrGjZydKHw1s-fdPOD+ySw7RyjmQqMhwMVXgpK5pAnA@mail.gmail.com>
Subject: Announcing Release 21 of the PostgreSQL Buildfarm Cient
To: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>,
	buildfarm-members@lists.postgresql.org
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I have released version 21 of the PostgreSQL Buildfarm Client
New features

   - *PatchStack module* =E2=80=94 a new module for non-standard buildfarms=
 that
   want to
   test a stack of patches on top of a branch. Note: this module is not for
   use with the regular community Buildfarm server - its use for builds
   reported there will be detected and rejected.
   - *ABI check module* =E2=80=94 a new module that runs abidw to detect AB=
I
   changes in
   installed headers (passes --headers-dir and --drop-private-types for
   compatibility across abidw versions). Original author: Mankirat Singh,
   with
   additions from Tom Lane.
   - *branches_target config key* =E2=80=94 run_branches.pl can now use a d=
edicated
   target URL for fetching branches_of_interest.json instead of deriving it
   by
   regex-mangling the main target URL. Falls back to the old derivation whe=
n
   unset; the pgbuildfarm URL migration is applied to it as well.

Build system / meson

   - using_meson is now decided by the presence of meson.build rather than
   by
   branch name, so it works reliably with non-standard branch names.
   - Use the meson --buildtype option.

Non-standard / regex-matched branches

   - Skip the bf_ prefix when using regex-matched branches.
   - Fetch remote branches for regex checking in a saner way.
   - Handle cases where there is no usable symbolic HEAD (and suppress the
   resulting clone warnings).
   - Handle a missing remote HEAD when updating a mirror.

Cross-version upgrade

   - Compress pg_upgrade dump files
   - Stop testing upgrades from pre-v10 in v20 and higher.
   - Several pg_upgrade_output.d fixes, including relative-path logic and a=
n
   output-collection bug.

Protocol

   - Adjust to upstream libpq protocol-version changes, and remove the
   PGMAXPROTOCOLVERSION setting earlier (per -hackers discussion).

Diagnostics & logging

   - Archive failing log stages, and collect an additional log file.
   - Improve run-time reporting when a command times out, and avoid exiting
   the
   timeout sleep early on a signal.
   - Move testrun directories aside rather than deleting them, to aid later
   diagnosis.

Bug fixes

   - Defer module checkout until after find_changed, so PatchStack commits
   do
   not make find_changed always report a build is needed.
   - Fix TAP-test duplication in configure/make builds (notably
   pg_plan_advice
   rerunning the whole regression suite), plus a scalar(glob()) Perl bug.
   - Disable git system settings when looking for changed files.
   - Fix finding the config file in the current directory in the auxiliary
   scripts.
   - Use proxy settings, if any, in run_branches.pl.
   - Skip the test_escape test on MSVC with old toolsets (non-meson,
   pre-16/17
   only).

Housekeeping

   - Clean up old tmpdir objects and stale port-lock (.rsv) files.
   - Avoid moving the .git directory when possible.
   - Set $devnull in a principled way.
   - Adjust for the unified Redis-FDW branches.

Downloads
the Release can be downloaded from
https://buildfarm.postgresql.org/downloads/latest-client.tgz or
https://github.com/PGBuildFarm/client-code/releases/tag/REL_21


enjoy

cheers

andrew

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<div dir=3D"ltr"><h2>I have released version 21 of the PostgreSQL Buildfarm=
 Client</h2><h2><br></h2><h2>New features</h2>
<ul><li><strong>PatchStack module</strong> =E2=80=94 a new module for non-s=
tandard buildfarms that want to<br>
test a stack of patches on top of a branch. Note: this module is not for us=
e with the regular community Buildfarm server - its use for builds reported=
 there will be detected and rejected.</li><li><strong>ABI check module</str=
ong> =E2=80=94 a new module that runs <code>abidw</code> to detect ABI chan=
ges in<br>
installed headers (passes <code>--headers-dir</code> and <code>--drop-priva=
te-types</code> for<br>
compatibility across abidw versions). Original author: Mankirat Singh, with=
<br>
additions from Tom Lane.</li><li><strong><code>branches_target</code> confi=
g key</strong> =E2=80=94 <code><a href=3D"http://run_branches.pl">run_branc=
hes.pl</a></code> can now use a dedicated<br>
target URL for fetching <code>branches_of_interest.json</code> instead of d=
eriving it by<br>
regex-mangling the main target URL. Falls back to the old derivation when<b=
r>
unset; the pgbuildfarm URL migration is applied to it as well.</li></ul>
<h2>Build system / meson</h2>
<ul><li><code>using_meson</code> is now decided by the presence of <code>me=
son.build</code> rather than by<br>
branch name, so it works reliably with non-standard branch names.</li><li>U=
se the meson <code>--buildtype</code> option.</li></ul>
<h2>Non-standard / regex-matched branches</h2>
<ul><li>Skip the <code>bf_</code> prefix when using regex-matched branches.=
</li><li>Fetch remote branches for regex checking in a saner way.</li><li>H=
andle cases where there is no usable symbolic HEAD (and suppress the<br>
resulting clone warnings).</li><li>Handle a missing remote HEAD when updati=
ng a mirror.</li></ul>
<h2>Cross-version upgrade</h2>
<ul><li>Compress <code>pg_upgrade</code> dump files</li><li>Stop testing up=
grades from pre-v10 in v20 and higher.</li><li>Several <code>pg_upgrade_out=
put.d</code> fixes, including relative-path logic and an<br>
output-collection bug.</li></ul>
<h2>Protocol</h2>
<ul><li>Adjust to upstream libpq protocol-version changes, and remove the<b=
r>
<code>PGMAXPROTOCOLVERSION</code> setting earlier (per -hackers discussion)=
.</li></ul>
<h2>Diagnostics &amp; logging</h2>
<ul><li>Archive failing log stages, and collect an additional log file.</li=
><li>Improve run-time reporting when a command times out, and avoid exiting=
 the<br>
timeout sleep early on a signal.</li><li>Move <code>testrun</code> director=
ies aside rather than deleting them, to aid later<br>
diagnosis.</li></ul>
<h2>Bug fixes</h2>
<ul><li>Defer module checkout until after <code>find_changed</code>, so Pat=
chStack commits do<br>not make <code>find_changed</code> always report a bu=
ild is needed.</li><li>Fix TAP-test duplication in configure/make builds (n=
otably <code>pg_plan_advice</code><br>
rerunning the whole regression suite), plus a <code>scalar(glob())</code> P=
erl bug.</li><li>Disable git system settings when looking for changed files=
.</li><li>Fix finding the config file in the current directory in the auxil=
iary scripts.</li><li>Use proxy settings, if any, in <code><a href=3D"http:=
//run_branches.pl">run_branches.pl</a></code>.</li><li>Skip the <code>test_=
escape</code> test on MSVC with old toolsets (non-meson, pre-16/17<br>
only).</li></ul>
<h2>Housekeeping</h2>
<ul><li>Clean up old tmpdir objects and stale port-lock (<code>.rsv</code>)=
 files.</li><li>Avoid moving the <code>.git</code> directory when possible.=
</li><li>Set <code>$devnull</code> in a principled way.</li><li>Adjust for =
the unified Redis-FDW branches.</li></ul><div><h2>Downloads</h2><div>the Re=
lease can be downloaded from <a href=3D"https://buildfarm.postgresql.org/do=
wnloads/latest-client.tgz">https://buildfarm.postgresql.org/downloads/lates=
t-client.tgz</a> or=C2=A0<a href=3D"https://github.com/PGBuildFarm/client-c=
ode/releases/tag/REL_21">https://github.com/PGBuildFarm/client-code/release=
s/tag/REL_21</a></div><div><br></div><div><br></div><div>enjoy</div><div><b=
r></div><div>cheers</div><div><br></div><div>andrew</div><br></div><br></di=
v>

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