Release

How to do a release

• determine which branches should be released
• check if all PRs are in all branches
• build/run tests
• tag the branches with the version number (v3.3.0, v3.2.12)
• publish to maven central

Scala binary version support policy

• version 3.2.x (since 3.2.12) against Scala 2.9
• version 3.3.x against Scala 2.11 and 2.10

See also: https://github.com/json4s/json4s/issues/183