[10214] Release Twisted 21.7.0

[adiroiban]

Scope and purpose

This is the PR for the 21.7.0 release series.

For now this PR and branch is WIP as I am trying/testing the release process.

Contributor Checklist:

• The associated ticket in Trac is here: https://twistedmatrix.com/trac/ticket/10214
• I ran tox -e lint to format my patch to meet the Twisted Coding Standard
• [NA] I have created a newsfragment in src/twisted/newsfragments/ (see: News files)
• The title of the PR starts with the associated Trac ticket number (without the # character).
• [NA] I have updated the automated tests and checked that all checks for the PR are green.
• I have submitted the associated Trac ticket for review by adding the word review to the keywords field in Trac, and putting a link to this PR in the comment; it shows up in https://twisted.reviews/ now.
• The merge commit will use the below format
  The first line is automatically generated by GitHub based on PR ID and branch name.
  The other lines generated by GitHub should be replaced.

Merge pull request #123 from twisted/4356-branch-name-with-trac-id

Author: adiroiban
Reviewer: 
Fixes: ticket:10214

Release Twisted 21.7.0

[graingert]

I'd like to upgrade ci to 3.10b3 before release

[graingert]

#1615

[adiroiban]

I will not release it just yet. I have marked it as a draft.

I still need to fix the CheckNewsfragmentScript and it looks like it was red even for a branch starting with 'release-'

[adiroiban]

Many thanks for the review. I have applied to changes.

I will not keep this branch up to date... as this is the release note.
I will add a info to the release documentation about this.

[adiroiban]

This is ready for the final release.
I am doing some fast-tracking here (as I now have some time)
But I plan to push the final release only on Saturday 17 of July, to allow for a full 1 week of feedback for the release candidate.

[adiroiban]

Thanks Thomas for the review and merge.

The next step on this branch is to do the 21.7.0rc2

[graingert]

17:10:00 I will push the RC2 release tonight or tomorrow ...and after that, in 2 days we should be able to do the final release... if no other issues are found.

[glyph]

Oops! Let me un-commit that.

[graingert]

needs 10235 and 10236

[adiroiban]

@graingert I will not be over IRC today.
If there is anything to review or check for the release you can mention me over GitHub. Thanks

[graingert]

@adiroiban

If there is anything to review or check for the release you can mention me over GitHub. Thanks

I tried out:

twisted[tls]==21.7.0rc3 \
    --hash=sha256:1e662b39390201187504399eaeb24c41dcf0fc5f1a9625d9fc89a15e6d6aa433 \
    --hash=sha256:5946ba6fd19f0a441548b1ff4e0ce8108efdfef090a8310017f1213cc1151439

on my test suite and everything now passes

[adiroiban]

Twisted 21.7.0 is ready for the final review.
The important part is to make sure the release notes make sense.

Thanks!

[twm]

I find myself wishing we had a documentation section for type-related changes, but the changelog LGTM.

[adiroiban]

Thanks for the review. I will trigger the release.

I find myself wishing we had a documentation section for type-related changes, but the changelog LGTM.

We can add a .type or .typing fragment category.

[adiroiban]

release pushed at https://github.com/twisted/twisted/runs/3179987482?check_suite_focus=true