This is the 7th release candidate of the new major version of Kryo (see also the RC1 release notes for major changes of v5).

This RC comes with support for JDK9+ immutable collections, more improvements of generics handling and some code cleanup. The exact list of changes from RC6 to RC7 can be found here.

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.

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-RC7 to RC6:

• Serialization compatible
  • Standard IO: Yes
  • Unsafe-based IO: Yes
• Binary compatible - No (Details)
• Source compatible - No (Details)