v0.66.0

0.66 stable is out!

This release includes 621 commits with 92 contributors! Thank you to all our contributors new and old! You can find the full changelog here.

• See the highlights of the release in our release blog post.
• You can participate in the conversation on the status of this release at this issue.
• You can upgrade to this version using the upgrade helper webtool ⚛️