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Release instructions

  1. Add the upcoming release version in version.json file.
  2. Ensure that milestones exist for the releases that you would like to make. Each milestone should contain its corresponding issues and pull requests.
  3. For patch releases, do the back-port patch release before the corresponding current release. This ensures that npm lists the current version as the latest one.
    1. git checkout 1.1.x, e.g. if the previous feature release is 1.1
    2. Follow the remaining ordinary release steps (step 5 and onward).
  4. Current releases are based on the master branch: git checkout master
    1. If you are making a patch release, you can just release master with its new patches.
    2. If you are making a feature release, you need to merge unstable onto master. Since there can be conflicts, it's easiest to use the 'ours' strategy which will allow you to use the state of unstable as-is (i.e. no conflict resolution necessary):
      1. Make sure your local master is up-to-date: git checkout master && git pull
      2. Make sure your local unstable is up-to-date: git checkout unstable && git pull
      3. Create a merge commit that selects the state of unstable and push it: git merge -s ours master && git push
      4. Fast-forward master to the merge commit: git checkout master && git merge unstable && git push
      5. Update the version number in package.json and package-lock.json on unstable to some provisional new version number, and push it.
  5. Update the VERSION environment variable for the release number you want to make, e.g. export VERSION=1.2.3
  6. Confirm all the tests are passing:
    1. npm run test
    2. See also test/index.html for browser testing (optional)
  7. Confirm all the tests are passing in IE9 (for feature releases):
    1. npm run watch:umd
    2. Open an IE9 VM
    3. Open http://yourip:8081/test/ie.html in IE
  8. Prepare a release: npm run release
  9. Review the files that were just built in the previous step.
    1. There should be a series of updated files in the dist directory and the documentation directory, identified with git status.
    2. Try out the newly-built docs and demos in your browser.
  10. Add the the release to git: git add . && git commit -m "Build $VERSION"
  11. Update the package version and tag the release: npm version $VERSION
  12. Push the release changes: git push && git push --tags
  13. Publish the release to npm: npm publish
  14. Run npm run docs:push
  15. Create a release for Zenodo from the latest tag. Make sure you wait at least 5 minutes since the last time that you made a release in order for Zenodo to work properly.
  16. For feature releases: Create a release announcement on the blog. Share the announcement on mailing lists and social media.