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](https://github.com/search?q=repo%3Ajupyterhub%2Frepo2docker+involves%3AGeorgianaElena+updated...

August 2025

(full changelog)

API and Breaking Changes

• Switch to using CLI for everything except running the container #1421 (@yuvipanda, @manics, @minrk)
• Require Python 3.9 to run repo2docker #1411 (@manics, @minrk, @yuvipanda)
• Shell out to docker buildx build to build images #1402 (@yuvipanda, @manics, @minrk)
• notebook 7 #1363 (@minrk, @manics)
• Major version bump node (18->20) and jupyterhub-singleuser (3->5) #1359 (@consideRatio, @yuvipanda)

Enhancements made

• add triplets for r versions 4.3, 4.4 #1403 (@minrk, @yuvipanda, @manics)
• Upgrade Shiny server to 2024.12 #1400 (@rgaiacs, @manics)
• Upgrade RStudio to 2024.12 #1399 (@rgaiacs, @manics)
• Use REST APIs to resolve DOIs + cleanup dataverse provider #1390 (@yuvipanda, @minrk, @pdurbin)
• exclude defaults channel by default #1365 (@minrk, @rgaiacs)

Bugs fixed

• [MRG] Disable bash trace output in conda activation script #1425 (@mfisher87, @manics)
• Simulate json output from docker buildx build #1413 (@yuvipanda, @manics, @minrk)
• set -e should not be set after conda environment is sourced #1409 (@manics, @yuvipanda)
• Use self.log rather than logging module directly #1378 (@yuvipanda, @manics)
• julia_project.py: fix Pkg REPL api warning #1376 (@fonsp, @GeorgianaElena, @agoose77)
• TarFile.add: don't add recursively #1371 (@manics, @minrk)

Maintenance and upkeep improvements

• Bump mamba from 2.0.5 to 2.1.0 #1423 (@weiji14, @yuvipanda)
• maint: Adapt mamba activation #1419 (@jjerphan, @yuvipanda, @minrk)
• Add a test for runtime.txt with full R version specified #1416 (@yuvipanda, @minrk)
• Bump alpine docker to 3.21 #1412 (@manics, @minrk)
• Refreeze base environment for package upgrades #1407 (@yuvipanda, @manics)
• Remove unused _urlopen method #1392 (@yuvipanda, @minrk)
• Upgraded to micromamba 2.0.5 #1387 (@JohanMabille, @yuvipanda, @SylvainCorlay)
• Use self.log.warning instead of warnings.warn #1384 (@yuvipanda, @manics)
• call close_handlers before garbage collection #1380 (@minrk, @manics)
• [pre-commit.ci] pre-commit autoupdate #1377 (@minrk)
• Update to mamba 1.5.9 #1370 (@SylvainCorlay, @manics)
• Refreeze conda packages (JupyterLab 4.2.3 -> 4.2.5) #1369 (@manics, @minrk)
• Update for mamba 1.5.8 #1367 (@jjerphan, @manics, @SylvainCorlay)
• update import of shlex.quote #1364 (@minrk, @manics)
• [pre-commit.ci] pre-commit autoupdate #1362 (@minrk)

Documentation improvements

• Revamp our documentation and refactor a bit #1433 (@choldgraf, @chuckwondo, @rgaiacs, @yuvipanda)
• bug report.rst #1429 (@nadiaguiffant, @manics)
• Add changelog for 2024.07.0 #1356 (@yuvipanda, @consideRatio, @manics)

Continuous integration improvements

• Add basic UI Playwright tests #1410 (@manics, @minrk)
• Don't run scheduled workflows on forks #1408 (@manics, @yuvipanda)
• build(deps): bump codecov/codecov-action from 4 to 5 #1381 (@minrk)
• [pre-commit.ci] pre-commit autoupdate #1358 (@minrk)
• build(deps): bump docker/build-push-action from 5 to 6 #1357 (@manics)

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)

@agoose77 (activity) | @AliMirlou (activity) | @betatim (activity) | @choldgraf (activity) | @chuckwondo (activity) | @consideRatio (activity) | @d70-t (activity) | @felder (activity) | @fonsp (activity) | @GeorgianaElena (activity) | @Hind-M ([activity](https://github.com/search?q=repo%3Ajupyterhub%2Frepo2docker+involves%3AHi...

July 2024 Release

Changelog: https://github.com/jupyterhub/repo2docker/blob/2024.07.0/docs/source/changelog.md

March 2024 release

Changelog: https://github.com/jupyterhub/repo2docker/blob/2024.03.0/docs/source/changelog.md

June 2023 release

Changelog: https://github.com/jupyterhub/repo2docker/blob/2023.06.0/docs/source/changelog.md

Breaking changes

• JupyterHub version installed by default upgraded from 1.5 to 3.1.1
• Microsoft killed MRAN, so all package snapshots now come from Posit Package Manager. Snapshots from before 2018-12-07 are now no longer available, so you might have to update the snapshot date in your runtime.txt.

October 2022 release

Changelog: https://github.com/jupyterhub/repo2docker/blob/2022.10.0/docs/source/changelog.rst

February 2022 release

Changelog: https://github.com/jupyterhub/repo2docker/blob/2022.02.0/docs/source/changelog.rst

August 2021 release

Changelog: https://github.com/jupyterhub/repo2docker/blob/2021.08.0/docs/source/changelog.rst

March 2021 release

2021.03.0

release 2021.03.0

v2021.01.0 - CalVer release one!

Merge pull request #1004 from betatim/setup-monthly-releases