This is a maintenance release coming with bug fixes for CompatibleFieldSerializer and the versioned artifact.
In Kryo 5.1.0, a direct dependency on the unversioned JAR accidentally made it into the POM for the versioned artifact (see #825). If you are using the versioned artifact, upgrading to 5.1.1 is recommended.
#822: Fix #821 Support closures when validating types in CompatibleFieldSerializer
#824: Fix #823 Fix ArrayIndexOutOfBoundsException in binary search logic
#825: Remove direct dependency from versioned artifact
The full list of changes can be found here.
Many thanks to all contributors!
For migration from previous major versions please check out the migration guide. We're asking the community to help and contribute this part: please edit the migration wiki page as you encounter any information or issues that might help others.