December 2025

(full changelog)

API and Breaking Changes

• require Python 3.10 #1481 (@minrk, @manics, @rgaiacs)
• Support pyproject.toml for pip install in Python buildpack #1444 (@rgaiacs, @minrk, @manics, @yuvipanda)
• Add --vanilla to R call #1432 (@rgaiacs, @manics, @consideRatio)
• Change default R version from 4.2 to 4.4 #1401 (@rgaiacs, @yuvipanda, @manics)
• Move runtime.txt parsing into base class #1428 (@manics, @minrk, @rgaiacs)

Enhancements made

• fetch dataverse installations at runtime #1479 (@minrk, @manics)
• Add Python 3.14 #1475 (@rgaiacs, @minrk)
• Bump mamba from 2.1.0 to 2.3.3, conda from 24.11.0 to 25.9.1 #1465 (@weiji14, @minrk, @rgaiacs, @manics, @yuvipanda)
• add support for R 4.5.1 #1460 (@shaneknapp, @yuvipanda)
• build: migrate from setup.py to pyproject.toml #1458 (@lixiname, @minrk, @rgaiacs)
• Add check for docker buildx #1457 (@rgaiacs, @yuvipanda)
• Support pyproject.toml for pip install in Python buildpack #1444 (@rgaiacs, @minrk, @manics, @yuvipanda)
• COPY --chmod=0755 /usr/local/bin/{python3-login,repo2docker-entrypoint} for rootless podman #1395 (@westurner, @minrk)

Bugs fixed

• Don't error out if there's no disk space left when writing the logs #1489 (@GeorgianaElena, @minrk, @rgaiacs, @yuvipanda)
• Fix the HydroShare download url #1488 (@sblack-usu, @rgaiacs)
• Updating conda buildpacks for Python == 3.13 #1476 (@rgaiacs)
• Always call ContainerEngine.build() when pushing #1464 (@manics, @rgaiacs)
• Fail earlier when user try to install future version of R #1456 (@rgaiacs, @minrk, @manics)
• Replace --vanilla with --no-init-file #1451 (@rgaiacs, @manics)

Maintenance and upkeep improvements

• [pre-commit.ci] pre-commit autoupdate #1491 (@minrk)
• [pre-commit.ci] pre-commit autoupdate #1484 (@minrk)
• [pre-commit.ci] pre-commit autoupdate #1473 (@minrk)
• Delete gitpod config #1472 (@manics, @minrk)
• Add base environment for Python 3.13 #1447 (@rgaiacs, @minrk, @manics)
• Add note on root users and make postbuild actions more discoverable #1436 (@choldgraf, @yuvipanda, @chuckwondo, @rgaiacs)
• Move runtime.txt parsing into base class #1428 (@manics, @minrk, @rgaiacs)
• Stop using datetime.utcnow() to fix warning #1406 (@yuvipanda, @minrk)
• [pre-commit.ci] pre-commit autoupdate #1394 (@yuvipanda)

Documentation improvements

• Update link for creating a release #1492 (@GeorgianaElena, @minrk, @rgaiacs)
• Add item to FAQ regarding rootless mode #1485 (@rgaiacs, @manics)
• Fix broken readme doc links #1466 (@agitter, @minrk)
• Add missing 2025.08.0 release in changelog #1462 (@rgaiacs, @manics)
• fix broken links in CONTRIBUTING.md #1461 (@shaneknapp, @rgaiacs)
• Improve documentation index page #1445 (@rgaiacs, @yuvipanda)
• Minor improvements to documentation #1442 (@rgaiacs, @manics, @yuvipanda)
• Avoid jupyter-repo2docker in the commad line #1438 (@rgaiacs, @yuvipanda)
• Simplify our release docs #1434 (@choldgraf, @yuvipanda, @minrk)
• Revamp our documentation and refactor a bit #1433 (@choldgraf, @chuckwondo, @rgaiacs, @yuvipanda)

Continuous integration improvements

• Bump actions/checkout from 5 to 6 #1490 (@manics)
• Bump actions/upload-artifact from 4 to 5 #1482 (@manics)
• Bump actions/setup-python from 5 to 6 #1470 (@consideRatio)
• Bump actions/checkout from 4 to 5 #1469 (@consideRatio)

Contributors to this release

The following people contributed discussions, new ideas, code and documentation contributions, and review.
See our definition of contributors.

(GitHub contributors page for this release)

@agitter (activity) | @choldgraf (activity) | @chuckwondo (activity) | @consideRatio (activity) | @GeorgianaElena (activity) | @lixiname (activity) | @manics (activity) | @matthewfeickert (activity) | @minrk (activity) | @rgaiacs (activity) | @sblack-usu (activity) | @shaneknapp (activity) | @weiji14 (activity) | @westurner (activity) | @yuvipanda (activity)