Release vX.Y.Z

Checklist for the release:

Review all documentation to ensure it is up-to-date and complete.
Follow building instructions at /docs/dev/releases.md to create a release candidate (RC), distribute RC to anyone who wants to test, collect feedback, fix bugs, create new RC, rinse-repeat until confident.
Follow building and releasing instructions at /docs/dev/releases.md to complete release process.
Delete this file.