Hi Adam. The joda-time library is still part of the application, but it’s no longer exposed as a transitive Maven dependency of the confluence artifact. If you need to continue to use it, just add a provided-scope dependency to your own POM. The version is still managed via the confluence-plugins-platform-pom, so you shouldn’t need to worry about the version.
Note this is purely a build-time breaking change. At runtime, joda-time is still available via OSGi as before.