Hi Junio, When building git from tonight's seen branch, it claims to be version 2.48.0, thus: $ pwd /home/ramsay/git $ $ ./git version git version 2.48.0 $ $ git describe v2.48.0-246-g568b3e75e9 $ $ git log -1 commit 568b3e75e9cc62870cace4e290d7c2bd3241e3e5 (HEAD -> seen, origin/seen) Merge: 1a6fedb381 20d77dd0a5 Author: Junio C Hamano <gitster@xxxxxxxxx> Date: Mon Jan 13 10:20:35 2025 -0800 Merge branch 'ps/zlib-ng' into seen * ps/zlib-ng: compat/zlib: allow use of zlib-ng as backend git-zlib: cast away potential constness of `next_in` pointer compat/zlib: provide stubs for `deflateSetHeader()` compat/zlib: provide `deflateBound()` shim centrally git-compat-util: move include of "compat/zlib.h" into "git-zlib.h" compat: introduce new "zlib.h" header git-compat-util: drop `z_const` define compat: drop `uncompress2()` compatibility shim $ $ cat GIT-VERSION v2.48.0 $ An additional wrinkle on cygwin is that, after having built git (or more precisely git-version.exe) then 'make sparse' and 'make hdr-check' spew to stderr, like: /home/ramsay/git/GIT-VERSION-GEN: line 27: warning: command substitution: \ ignored null byte in input which is caused by GIT-VERSION, git-version and git-version.exe being 'seen' as the same file on cygwin (case insensitive filessytem + cygwin 'magic'): $ ls -l GIT-VERSION -rwxr-xr-x 140 ramsay None 21M Jan 14 00:05 GIT-VERSION* $ $ file GIT-VERSION GIT-VERSION: PE32+ executable (console) x86-64, for MS Windows, 19 sections $ $ ls -l *version* -rwxr-xr-x 140 ramsay None 21M Jan 14 00:05 git-version.exe* -rw-r--r-- 1 ramsay None 3.4K Jan 13 23:49 version.c -rw-r--r-- 1 ramsay None 619 Jan 13 23:49 version.h -rw-r--r-- 1 ramsay None 50 Jan 14 00:24 version.hcc -rw-r--r-- 1 ramsay None 21K Jan 14 00:13 version.o -rw-r--r-- 1 ramsay None 0 Jan 14 00:13 version.sp -rw-r--r-- 1 ramsay None 5.4K Dec 24 14:03 versioncmp.c -rw-r--r-- 1 ramsay None 118 Sep 8 21:39 versioncmp.h -rw-r--r-- 1 ramsay None 53 Jan 14 00:24 versioncmp.hcc -rw-r--r-- 1 ramsay None 15K Jan 13 23:59 versioncmp.o -rw-r--r-- 1 ramsay None 0 Jan 14 00:13 versioncmp.sp -rw-r--r-- 1 ramsay None 199 Jan 14 00:13 version-def.h -rw-r--r-- 1 ramsay None 207 Dec 16 19:08 version-def.h.in $ I normally like to find solutions before posting problems to the list, but unfortunately I don't have time to look into this at the moment. Sorry! Just a heads up. ATB, Ramsay Jones