Release 5.2.1

[gnestor]

We should do a patch release primarily for #2981. Here are the other PRs we plan to include: https://github.com/jupyter/notebook/pulls?q=is%3Apr+is%3Aclosed+milestone%3A5.2.1

• Add 5.2.1 to changelog?
  • Add 5.2.1 to changelog #2989
• Release 5.2.1rc1
• Release 5.2.1
  • Upload to PyPI
  • Create release on Github
  • Upgrade notebook version in conda-forge/notebook-feedstock
    • Upgrade to notebook 5.2.1 conda-forge/notebook-feedstock#23
  • Upgrade notebook version on nbviewer
    • Upgrade to notebook 5.2.1 nbviewer#737
  • Upgrade notebook version on docker-stacks
    • Upgrade to notebook 5.2.0 docker-stacks#482
  • Publish to Google Group
    • https://groups.google.com/forum/#!topic/jupyter/YlQym8VrBFk

[gnestor]

@Carreau What would be the best approach for including only specific PRs merged to master since the "release 5.2.0" commit? Create a new branch and chery-pick individual commits? Checkout the "release 5.2.0" commit and then manually merge in individual branches?

[Carreau]

@Carreau What would be the best approach for including only specific PRs merged to master since the "release 5.2.0" commit? Create a new branch and chery-pick individual commits? Checkout the "release 5.2.0" commit and then manually merge in individual branches?

A branch that diverge at 5.2.0 and cherry-picking up PRs, should be doable

Once the branch is created you might be able to just mention MeeseeksDev in relevant PRs and ask it to backport to <branchname>. It will open PRs though, but it might be easier than backporting by hand.

[lumberbot-app]

Oweee, Happy to help

[gnestor]

It worked! Thanks MeeseeksDev!! 👍👍

[gnestor]

OK, I have backported all of the PRs marked with 5.2.1 milestone 👍

[gnestor]

notebook 5.2.1rc1 is available on PyPI. Give it a try: https://pypi.org/project/notebook/#history

[gnestor]

I'm considering releasing 5.2.1 tomorrow (Thursday). Any objections?

[gnestor]