This is the second release candidate of the new major version of Kryo, which fixes many issues and makes many long awaited improvements (see also the RC1 release notes).
The second RC comes with fixes and approvements over the first RC based on your valuable feedback: here's what changed from RC1 to RC2
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.
This RC may be the last one asking for feedback before 5.0.0. If you think you found a bug, please submit an issue. If you think something should be changed before 5.0.0 is released, please post on the mailing list.
Compatibility
Due to big changes 5.0.0 is both source/binary incompatible and serialization incompatible to previous major versions - for details see the RC1 compatibility report.
Compatibility of 5.0.0-RC2 to RC1: