Remarkable changes do not affect system stability after ApiOMat upgrade, but may require changes in configuration, apps, or modules in the next development cycle.
The version of the maven-dependency-plugin should be pinned to 2.1. Otherwise, libraries will be duplicated and lead to unforseen behaviour. Please remove these duplicates. Read more about that in the warning-note on the Maven Integration page.
All changes in the current and previous versions can be found at the root page.
All deprecations and their removal date can be found at Deprecations and Migration.