Maintainer information¶

Making a release¶

For branch organization we use a variation of the GitHub Flow with the latest release branch named stable (due to ReadTheDocs constraints).

Making a major release¶

Make a new PR and for all occurrences of https://cdn.jsdelivr.net/pyodide/dev/full/ in ./docs/ replace dev with the release version vX.Y.Z (note the presence of the leading v). This also applies to docs/conf.py, but you should skip this file and docs/usage/downloading-and-deploying.md.
Set the version in:
- docs/project/about.md,
- setup.cfg,
- src/js/package.json,
- src/py/pyodide/__init__.py,
- src/py/setup.cfg,
- pyodide-build/setup.cfg,
After this, try using ripgrep to make sure there are no extra old versions lying around e.g., rg -F "0.18", rg -F dev0, rg -F dev.0.
Make sure the change log is up-to-date.
- Indicate the release date in the change log.
- Generate the list of contributors for the release at the end of the changelog entry with,
```
git shortlog -s LAST_TAG.. | cut -f2- | sort --ignore-case | tr '\n' ';' | sed 's/;/, /g;s/, $//' | fold -s
```
  where LAST_TAG is the tag for the last release. Merge the PR.
Assuming the upstream stable branch exists, rename it to a release branch for the previous major version. For instance if last release was, 0.20.0, the corresponding release branch would be 0.20.X,
```
git fetch upstream
git checkout stable
git checkout -b 0.20.X
git push upstream 0.20.X
git branch -D stable    # delete locally
```
Create a tag X.Y.Z (without leading v) and push it to upstream,
```
git tag X.Y.Z
git push upstream X.Y.Z
```
Create a new stable branch from this tag,
```
git checkout -b stable
git push upstream stable --force
```
Wait for the CI to pass and create the release on GitHub.

Release the Pyodide JavaScript package:

cd src/js
npm publish # Note: use "--tag next" for prereleases
npm dist-tag add pyodide@a.b.c next # Label this release as also the latest unstable release

Revert Step 1. and increment the version in src/py/pyodide/__init__.py to the next version specified by Semantic Versioning.

Making a minor release¶

For a minor release, commits need to be added to the stable branch, ideally via a PR. This can be done with either,

git cherry picking individual commits,

git checkout stable
git pull
git checkout -b backport-branch
git cherry-pick <commit-hash>

or with interactive rebase,

git fetch upstream
git checkout stable
git pull
git checkout -b backport-branch
git rebase -i upstream/main

and indicate which commits to take from main in the UI.

Then follow steps 2, 3, and 6 from Making a major release.

Making an alpha release¶

Follow steps 2, 6, 7, and 9 from Making a major release. Name the first alpha release x.x.xa1 and in subsequent alphas increment the final number. For the npm package the alpha should have version in the format x.x.x-alpha.1. For the node package make sure to use npm publish --tag next to avoid setting the alpha version as the stable release.

If you accidentally publish the alpha release over the stable latest tag, you can fix it with: npm dist-tag add pyodide@a.b.c latest where a.b.c should be the lastest stable version. Then use npm dist-tag add pyodide@a.b.c-alpha.d next to set the next tag to point to the just-published alpha release.

Fixing documentation for a released version¶

Cherry pick the corresponding documentation commits to the stable branch. Use [skip ci] in the commit message.

Version 0.20.0dev0

Maintainer information

Contents