• Publish now requires Swift 5.5 and macOS 12.0 Monterey (or an equivalent Swift installation on Linux).
• Many aspects of Publish now run concurrently, which vastly speeds up the generation of larger websites when Publish is used on a machine with a multi-core CPU.
• Git-based deployment is now more reliable regardless of what branch name that's used (by @schrismartin)
• publish run now always uses Python 3 for better compatibility with macOS Monterey.

This release also includes documentation improvements by @omaralbeik and a CLI fix by @uhooi.