Support Guidelines for active releases

🌲 Redwood 🌲 is in support.

Fixes you make on master may still be needed on Redwood.

If so, make another pull request against the open-release/redwood.master branch, or ask in the #wg-build-test-release Slack channel if you have any questions or need help.

The 🌳 Quince 🌳 release will also be supported until 2024-06-10.
Please consider whether your change should be applied to open-release/quince.master as well.