Hi Lars, On Thu, 24 Apr 2025, Lars Eriksen - DSV wrote: > What did you do before the bug happened? (Steps to reproduce your issue) > Upgraded to a recent git for windows found here: https://git-scm.com/downloads > > What did you expect to happen? (Expected behavior) > The embedded curl should be able to use HTTP/2 against our backend. > > What happened instead? (Actual behavior) > After updating git for windows curl is unable to authenticate to our backend that requires HTTP/2. curl --version shows it is not compiled in. It worked in the prior version, 2.39.0.windows.2 Careful: `curl.exe` does not necessarily show the same capabilities as are in effect when using Git. The reason is that the default SSL/TLS backend is Secure Channel, whereas Git can be configured to use OpenSSL instead. And looking at the most recent build of Git for Windows' cURL, I see in https://github.com/git-for-windows/git-for-windows-automation/actions/runs/14221753030/job/39851304688#step:16:1230 that the OpenSSL version is compiled with HTTP/2 support whereas https://github.com/git-for-windows/git-for-windows-automation/actions/runs/14221753030/job/39851304688#step:16:2854 shows that the Secure Channel version is compiled without HTTP/2 support. When you configure `http.sslBackend = openssl`, does it work then? Ciao, Johannes P.S.: The bug reporting template of `git bugreport` sadly omits useful hints such as including the contents of `/etc/install-options.txt`, where others could easily see whether you chose the Secure Channel or the OpenSSL backend as Git's default. > > What's different between what you expected and what actually happened? > I expected curl to be able to run as before when contacting our backend in our maintenance scripts. I'm not allowed to install a custom curl on our corporate network, and the windows version does not support HTTP/2 either. But the git version used to. > > Anything else you want to add: > > Please review the rest of the bug report below. > You can delete any lines you don't wish to share. > > > [System Info] > git version: > git version 2.49.0.windows.1 > cpu: x86_64 > built from commit: cca1f38702730b35f52c29efd62864b85e85ddcc > sizeof-long: 4 > sizeof-size_t: 8 > shell-path: D:/git-sdk-64-build-installers/usr/bin/sh > feature: fsmonitor--daemon > libcurl: 8.12.1 > OpenSSL: OpenSSL 3.2.4 11 Feb 2025 > zlib: 1.3.1 > uname: Windows 10.0 20348 > compiler info: gnuc: 14.2 > libc info: no libc information available > $SHELL (typically, interactive shell): C:\Program Files\Git\usr\bin\bash.exe > > > [Enabled Hooks] > not run from a git repository - no hooks to show > > DSV internal > >