[ANNOUNCE] Git for Windows 2.51.0(2)

[Johannes Schindelin]

Dear Git users,

I hereby announce that Git for Windows 2.51.0(2) is available from:

https://gitforwindows.org/

Changes since Git for Windows v2.51.0 (August 19th 2025)

New Features

* Comes with PCRE2 v10.46.
* Comes with cURL v8.16.0. This addresses a bug where fetches/pushes
could fail with failed to read data from server:
SEC_E_CONTEXT_EXPIRED (0x80090317) under certain circumstances.
Also included: a back-port of a fix for a bug where connection
failures were mistakenly reported as time-outs.
* Comes with Tig v2.6.0.
* Comes with MinTTY v3.8.1.
* Comes with OpenSSL v3.5.3.

Bug Fixes

* The auto-updater now shows Git for Windows icon in the notification
also on Windows/ARM64.
* git clone/git fetch now deals more gracefully with directory / file
conflicts when the files backend is used for ref storage, by
failing only the ones that are involved in the conflict while
allowing others. This is a regression in Git v2.51.0 that was
reported in Git for Windows and independently also to the Git
mailing list. This was fixed by merging Git's topic branch kn/
refs-files-case-insensitive.
* Support for pathspecs in diff --no-index was somewhat buggy, which
has been fixed.
* git sparse-checkout subcommand learned a new clean action to prune
otherwise unused working-tree files that are outside the areas of
interest. An earlier version of this had been integrated into
Microsoft Git already. This was fixed by merging Git's topic branch
ds/sparse-checkout-clean.
* git rebase -i failed to clean-up the commit log message when the
command commits the final one in a chain of "fixup" commands, which
has been corrected. Backported from Git's topic branch pw/
rebase-i-cleanup-fix.
* git subtree did not work correctly when splitting squashed
subtrees, which has been improved. Backported from Git's topic
branch cs/subtree-squash-split-fix.
* Some among git add -p and friends ignored color.diff and/or
color.ui configuration variables, which is an old regression, which
has been corrected. This was fixed by merging Git's topic branch jk
/add-i-color.
* A corner-case bug in git log -L... has been corrected. This was
fixed by merging Git's topic branch sg/line-log-boundary-fixes.
* A broken or malicious git fetch can say that it has the same object
for many many times, and the upload-pack serving it can exhaust
memory storing them redundantly, which has been corrected. This was
fixed by merging Git's topic branch ps/upload-pack-oom-protection.
* Fixes multiple crashes around midx write-out codepaths. This was
fixed by merging Git's topic branch ds/midx-write-fixes.
* git repack --path-walk lost objects in some corner cases, which has
been corrected. This was fixed by merging Git's topic branch ds/
path-walk-repack-fix.
* Under a race against another process that is repacking the
repository, especially a partially cloned one, git fetch may
mistakenly think some objects we do have are missing, which has
been corrected. This was fixed by merging Git's topic branch jk/
fetch-check-graph-objects-fix.
* Various options to git diff that makes comparison ignore certain
aspects of the differences (like "space changes are ignored",
"differences in lines that match these regular expressions are
ignored") did not work well with --name-only and friends. This was
fixed by merging Git's topic branch ly/
diff-name-only-with-diff-from-content.
* git diff --no-index run inside a subdirectory under control of a
Git repository operated at the top of the working tree and stripped
the prefix from the output, and oddballs like "-" (stdin) did not
work correctly because of it. Correct the set-up by undoing what
the set-up sequence did to the current working directory and
prefix. This was fixed by merging Git's topic branch jc/
diff-no-index-in-subdir.
* Various bugs about rename handling in "ort" merge strategy have
been fixed. This was fixed by merging Git's topic branch en/
ort-rename-fixes.
* git push had a code path that led to BUG() but it should have
reported a regular failure, as it is a response to a usual but
invalid end-user action to attempt pushing an object that does not
exist. This was fixed by merging Git's topic branch dl/
push-missing-object-error.
* git refs migrate to migrate the reflog entries from a refs backend
to another had a handful of bugs squashed. This was fixed by
merging Git's topic branch ps/reflog-migrate-fixes.
* During interactive rebase, using drop on a merge commit lead to an
error, which was incorrect. This was fixed by merging Git's topic
branch js/rebase-i-allow-drop-on-a-merge.

Git-2.51.0.2-64-bit.exe | 5cf583441ccd8d98d3492936235b6ee30c6847d1b3f49365d6a025b3432094ad
Git-2.51.0.2-arm64.exe | ba95adc559e2d91ae28aa354c0ffb06b2c54f2bf42985f278dded9ca31194816
PortableGit-2.51.0.2-64-bit.7z.exe | 85d6e9f865b73827e22d532fd6cd5b93987c8d264142786b0721956619d5c00e
PortableGit-2.51.0.2-arm64.7z.exe | f35e795224349c63b7d6c429c2d8404a6ce7e2e8f91934a3f6ba2ca8e7e285a8
MinGit-2.51.0.2-64-bit.zip | 314fc2b7425ca116ea201e493fcb72008376c64997e866e6c8b8a5b360b3b8a9
MinGit-2.51.0.2-arm64.zip | 4feecfaea2647a2a0b25b7bfa518b9a65eb3434d9be7016e4dd348f07bcc6d2f
MinGit-2.51.0.2-32-bit.zip | 617a1433fbf5e23deaa17b7559d79f465a08fea7e09a0cff32ac0f2216003a8e
MinGit-2.51.0.2-busybox-64-bit.zip | deb7e15ec1e33cad225a6be4401617e21569d188da0a1ca71c29d8018ad087b6
MinGit-2.51.0.2-busybox-32-bit.zip | b2ed51815e858497c2399004a855d5ebb0f8eacd93e0a81a6afc46b5741efda6
Git-2.51.0.2-64-bit.tar.bz2 | 0e4dcabc37f9749fb57b292611a53155842fe52bcbef8e7f56cc80ced65bf3f5
Git-2.51.0.2-arm64.tar.bz2 | a219d91f5f8e707f5e7ff23402af1e7e6421c972896fa3f33edba170439bae90

Ciao,
Johannes

[Junio C Hamano]

Johannes Schindelin <johannes....@gmx.de> writes:

> Bug Fixes
> ...

I see you are merging a lot of fixes ahead of me, which is very much
appreciated, as I was planning to do 2.51.1 before 2.52, and the
selections you made so far are very sensible and pretty much in line
with what I had in mind.

Thanks!