There aren't significant changes in this release, but some of them do break backwards compatibility. The most impactful change is the the new storage adapter for caching checksums to speed up packages.json generation.
- Added a storage adapter to cache checksums.
- Reworked when cached releases are added to a package to prevent all plugins and themes from being searched (instead of only managed packages).
- Determined package type after an upgrade from provided info to prevent errors.
- Renamed the whitelist repository to managed.
- Updated cedaro/wp-plugin dependency to ^1.0.
- Updated psr/log to ^3.0.
- Removed the return type for PackageArchive:archive_on_upgrade() to prevent errors.
- Updated API Key REST controller to check permissions using the API Key user instead of the passed user.
- Minor code and doc clean up.