Debian Contributions: 2026-05 Contributing to Debian is part of Freexian s mission. This article covers the latest achievements of Freexian and their collaborators. All of this is made possible by organizations subscribing to our Long Term Support contracts and consulting services.

Go default compatibility, by Helmut Grohne At the MiniDebConf Hamburg, Andrew Lee had prepared a talk on how Debian accidentally chooses Go compatibility. Helmut joined Tobias Quathammer and Andrew Lee in looking into the problem. Go has a compatibility system where modules declare a desired Go version to be compatible with. This influences various features such as whether RSA keys smaller than 1024 bits are accepted. Unfortunately, Debian s way of building Go packages is unique in setting GO111MODULE=off, which practically implies a very old compatibility version that enables a number of insecure settings. Most Linux distributions use the default GO111MODULE=on and therefore consult a go.mod file that often declares a sensible version. While doing so is the way for Debian longer term, getting there involves major changes so we also sought a more short term workaround. We developed a patch to the Go compiler that would enable it to pick up a compatibility version from the environment. Tobias uploaded it to unstable. The next step is communicating the declared compatibility version from go.mod to the compiler via the new variable. Then, rebuilding the archive resolves the immediate symptoms. This does not save us from having to perform the larger transition to GO111MODULE=on, but this shortcut can be backported to trixie.

Trimming build-essential, by Helmut Grohne One of the harder problems of the architecture cross bootstrap is correctly expressing the Build-Depends of glib during the toolchain bootstrap. It implicitly depends on build-essential, which happens to depend on libc6-dev. This poses a cycle. It applies even for cross building, because it is interpreted for the host architecture and that there is no way of satisfying this dependency during the toolchain bootstrap. Given discussions at MiniDebConf Hamburg with Jochen Sprickerhof and others, a seemingly stupid idea evolved: Let s delete build-essential. What looks insane on the surface might deserve a second look. Given how we moved away from C, C++ and autotools, what is in build-essential no longer is required by much of the archive. With the rise of debputy, debian/rules no longer has to be a makefile. While the task would be huge, those packages relevant to architecture bootstrap could explicitly support building without the implied dependency making their dependencies explicit. In a number of cases, this amounts to issuing a dependency on g++-for-host. This dependency requires the use of architecture-prefixed tools. Therefore, Helmut wrote a debhelper change that makes it always pass build tools to various build systems. This also enables more packages to honour environment variables such as CC and CXX.

Python upstream engagement, by Stefano Rivera Stefano attended PyCon US (at personal expense) to improve upstream relations and ensure Debian s voice is heard where it needs to be. On Friday there was a packaging summit (notes) with good discussion on the future of the wheel format, and some discussion of the new abi3t shared library format for free-threaded python. In preparation for the event, Stefano did a complete review of the current patch stack. Stefano s primary goal was to get some of Debian s patches merged during the sprints, and results were mixed. Some trivial patches (e.g. GH-150098, made progress and merged, but the most consequential patch Debian is carrying is still blocked. Stefano will continue to try to drive progress on this.

Miscellaneous contributions

• Carles worked on po-debconf-manager: Reviewed Catalan translations for 6 packages, submitted 10 packages to maintainers, and removed 3 packages from po-debconf-manager.
• Carles worked on check-relations: Continued improving the backend, including importing source package build dependencies to better support analysis of Debian blends. Added support for ignoring packages using regular expressions and source package names in response to user feedback. Used the tool to report 5 new bugs and followed up on previously reported issues.
• Helmut sent a cross build patch on behalf of a customer.
• Helmut uploaded debvm and guess_concurrency both featuring improved reproducibility and documentation.
• Helmut continued maintaining rebootstrap and made it correctly handle binNMUs of gcc-defaults. Additionally, he poked at existing gcc patches giving answers, rebasing or closing them.
• Helmut supported the video team in Hamburg mixing audio.
• Helmut continued to report undeclared file conflicts of various kinds and corresponded with maintainers about them.
• Antonio attended a debate during the Brazil Internet Forum about the impacts of the child protection regulation (ECA Digital) on free software operating systems.
• Antonio worked on Debian CI to improve the system transparency for users. This included listing any pending jobs explicitly in the job lists for each package/architecture/suite page, as well as adding a queue status page that users can check for an estimate of test latency.
• Antonio worked on several Debian CI maintenance tasks, including but not limited to some monitoring improvements, replacing usage of fonts-font-awesome with fonts-fork-awesome, and adding the ability in debci to configure a global notice (which is being used in Debian CI to point to the system status pages).
• Antonio started doing some tests related to the change of default Debian CI backend from lxc to incus-lxc. This helped identify an omission in the creation of incus-lxc images. It was missing dpkg-dev, which caused a few packages that assumed its presence to fail. In the end, the incus-lxc backend will be fixed to include dpkg-dev by default in the image, but that uncovered an undeclared dependency in gem2deb (Ruby packaging helper) and in ruby-byebug, both already fixed in unstable.
• Stefano did some minimal work on debian-reimbursements to get it working with current versions of django-allauth.
• May included the discovery of several high-severity Linux kernel root exploits. Stefano updated kernels and rebooted debian.social infrastructure several times.
• Stefano supported the Hamburg miniDebConf s wafer website during the event, and set up an instance for the 2027 edition too.
• Stefano supported the bursary team issuing bursaries for DebConf 26.
• Stefano uploaded routine updates of python-pip, pystemmer, snowball-data, snowball (making up a mini, uncoordinated snowball transition), python-authlib, python-discovery, python-installer, python-mitogen, python-pipx, python-cachecontrol, platformdirs, and python-virtualenv.
• Stefano fixed a small number of bugs in dh-python, culminating in the 7.20260524 upload.
• Thorsten finally managed to upload a new upstream version of hplip. He also uploaded a new upstream version of epson-inkjet-printer-escpr. Last but not least with the help of other contributors he could fix bugs in lprng.
• Lucas and Santiago contributed significantly to the DebConf 26 Content team; helping to organize the team, review and rate talk proposals.
• Lucas also supported a packaging sprint held in India by rebuilding and publishing the latest results of the Ruby 3.4 transition effort.
• Santiago continued contributing to the efforts to organize DebConf 26, especially supporting the local team with different tasks.
• In collaboration with Emmanuel Arias, Santiago is mentoring Aryan Karamtoth, a GSoC participant that is working to introduce linux live-patching support in Debian. The GSoC project started in May, with community bonding and coding. Santiago reviewed a merge request to prepare the clang-extract package for debian. clang-extract is one of the building blocks that will help to extract specific functions from large C code, so only relevant code can be patched, without recompiling the whole original basecode.
• Anupa assisted Jean-Pierre Giraud with the point release announcements for Debian 13.5 and Debian 12.14.
• Colin backported various security fixes from OpenSSH 10.3 to all supported releases (including LTS and ELTS).
• Colin backported IP quality-of-service fixes to OpenSSH in trixie. The situation there had been unsatisfactory for some time, and upstream reworked their QoS support in OpenSSH 10.1 in a way that typically produces much better results.
• Colin imported new upstream versions of 26 Python packages, and fixed around 25 RC bugs for the Python team.

Debian Contributions: 2025-01 Contributing to Debian is part of Freexian s mission. This article covers the latest achievements of Freexian and their collaborators. All of this is made possible by organizations subscribing to our Long Term Support contracts and consulting services.

Python 3.13 is now the default Python 3 version in Debian, by Stefano Rivera and Colin Watson The Python 3.13 as default transition has now completed. The next step is to remove Python 3.12 from the archive, which should be very straightforward, it just requires rebuilding C extension packages in no particular order. Stefano fixed some miscellaneous bugs blocking the completion of the 3.13 as default transition.

Fixing qtpaths6 for cross compilation, by Helmut Grohne While Qt5 used to use qmake to query installation properties, Qt6 is moving more and more to CMake and to ease that transition it relies on more qtpaths. Since this tool is not naturally aware of the architecture it is called for, it tends to produce results for the build architecture. Therefore, more than 100 packages were picking up a multiarch directory for the build architecture during cross builds. In collaboration with the Qt/KDE team and Sandro Knau in particular (none affiliated with Freexian), we added an architecture-specific wrapper script in the same way qmake has one for Qt5 and Qt6 already. The relevant CMake module has been updated to prefer the triplet-prefixed wrapper. As a result, most of the KDE packages now cross build on unstable ready in time for the trixie release.

/usr-move, by Helmut Grohne In December, Emil S dergren reported that a live-build was not working for him and in January, Colin Watson reported that the proposed mitigation for debian-installer-utils would practically fail. Both failures were to be attributed to a wrong understanding of implementation-defined behavior in dpkg-divert. As a result, all M18 mitigations had to be reviewed and many of them replaced. Many have been uploaded already and all instances have received updated patches. Even though dumat has been in operation for more than a year, it gained recent changes. For one thing, analysis of architectures other than amd64 was requested. Chris Hofstaedler (not affiliated with Freexian) kindly provided computing resources for repeatedly running it on the larger set. Doing so revealed various cross-architecture undeclared file conflicts in gcc, glibc, and binutils-z80, but it also revealed a previously unknown /usr-move issue in rpi.rpi-common. On top of that, dumat produced false positive diagnostics and wrongly associated Debian bugs in some cases, both of which have now been fixed. As a result, a supposedly fixed python3-sepolicy issue had to be reopened.

rebootstrap, by Helmut Grohne As much as we think of our base system as stable, it is changing a lot and the architecture cross bootstrap tooling is very sensitive to such changes requiring permanent maintenance. A problem that recently surfaced was that building a binutils cross toolchain would result in a binutils-for-host package that would not be practically installable as it would depend on a binutils-common package that was not built. This turned into an examination of binutils-common and noticing that it actually differed across architectures even though it should not. Johannes Schauer Marin Rodrigues (not affiliated with Freexian) and Colin Watson kindly helped brainstorm possible solutions. Eventually, Helmut provided a patch to move gprofng bits out of binutils-common. Independently, Matthias Klose (not affiliated with Freexian) split out binutils-gold into a separate source package. As a result, binutils-common is now equal across architectures and can be marked Multi-Arch: foreign resolving the initial problem.

Salsa CI, by Santiago Ruano Rinc n Santiago continued the work about the sbuild support for Salsa CI, that was mentioned in the previous month report. The !568 merge request that created the new build image was merged, making it easier to test !569 with external projects. Santiago used a fork of the debusine repo to try the draft !569, and some issues were spotted, and part of them fixed. This is the last debusine pipeline run with the current !569: https://salsa.debian.org/santiago/debusine/-/pipelines/794233. One of the last improvements relates to how to enable projects to customize the pipeline, in an equivalent way than they currently do in the extract-source and build jobs. While this is work-in-progress, the results are rather promising. Next steps include deciding on introducing schroot support for bookworm, bookworm-security, and older releases, as they are done in the official debian buildd.

DebConf preparations, by Stefano Rivera and Santiago Ruano Rinc n DebConf will be happening in Brest, France, in July. Santiago continued the DebConf 25 organization work, looking for catering providers. Both Stefano and Santiago have been reaching out to some potential sponsors. DebConf depends on sponsors to cover the organization cost, if your company depends on Debian, please consider sponsoring DebConf. Stefano has been winding up some of the finances from previous DebConfs. Finalizing reimbursements to team members from DebConf 23, and handling some outstanding issues from DebConf 24. Stefano and the rest of the DebConf committee have been reviewing bids for DebConf 26, to select the next venue.

Ruby 3.3 is now the default Ruby interpreter, by Lucas Kanashiro Ruby 3.3 is about to become the default Ruby interpreter for Trixie. Many bugs were fixed by Lucas and the Debian Ruby team during the sprint hold in Paris during Jan 27-31. The next step is to remove support of Ruby 3.1, which is the alternative Ruby interpreter for now. Thanks to the Debian Release team for all the support, especially Emilio Pozuelo Monfort.

Rails 7 transition, by Lucas Kanashiro Rails 6 has been shipped by Debian since Bullseye, and as a WEB framework, many issues (especially security related issues) have been encountered and the maintainability of it becomes harder and harder. With that in mind, during the Debian Ruby team sprint last month, the transition to Rack 3 (an important dependency of rails containing many breaking changes) was started in Debian unstable, it is ongoing. Once it is done, the Rails 7 transition will take place, and Rails 7 should be shipped in Debian Trixie.

Miscellaneous contributions

• Stefano improved a poor ImportError for users of the turtle module on Python 3, who haven t installed the python3-tk package.
• Stefano updated several packages to new upstream releases.
• Stefano added the Python extension to the re2 package, allowing for the use of the Google RE2 regular expression library as a direct replacement for the standard library re module.
• Stefano started provisioning a new physical server for the debian.social infrastructure.
• Carles improved simplemonitor (documentation on systemd integration, worked with upstream for fixing a bug).
• Carles upgraded packages to new upstream versions: python-ring-doorbell and python-asyncclick.
• Carles did po-debconf translations to Catalan: reviewed 44 packages and submitted translations to 90 packages (via salsa merge requests or bugtracker bugs).
• Carles maintained po-debconf-manager with small fixes.
• Rapha l worked on some outstanding DEP-14 merge request and participated in the associated discussion. The discussions have been more contentious than anticipated, somewhat exacerbated by Otto s desire to conclude fast while the required tool support is not yet there.
• Rapha l, with the help of Philipp Kern from the DSA team, upgraded tracker.debian.org to use Django 4.2 (from bookworm-backports) which in turn enabled him to configure authentication via salsa.debian.org. It s now possible to login to tracker.debian.org with your salsa credentials!
• Rapha l updated zim a nice desktop wiki that is very handy to organize your day-to-day digital life to the latest upstream version (0.76).
• Helmut sent patches for 10 cross build failures.
• Helmut continued working on a tool for memory-based concurrency limit of builds.
• Helmut NMUed libtool, opensysusers and virtualbox.
• Enrico tried to support Helmut in working out tricky usrmerge situations
• Thorsten Alteholz uploaded a new upstream version of brlaser.
• Colin Watson upgraded 33 Python packages to new upstream versions, including fixes for CVE-2024-42353, CVE-2024-47532, and CVE-2025-22153.
• Emilio Pozuelo managed various transitions, and fixed various RC bugs (telepathy-glib, xorg, xserver-xorg-video-vesa, apitrace, mesa).
• Anupa attended the monthly team meeting for Debian publicity team and shared the social media stats.
• Anupa assisted Jean-Pierre Giraud in the point release announcement for Debian 12.9 and published the Micronews.
• Anupa took part in multiple Debian publicity team discussions regarding our presence in social media platforms.

The following contributors got their Debian Developer accounts in the last two months:

• Alexandre Detiste (tchet)
• Amin Bandali (bandali)
• Jean-Pierre Giraud (jipege)
• Timthy Pearson (tpearson)

The following contributor was added as Debian Maintainer in the last two months:

• Safir Secerovic

Congratulations!