In the Scala ecosystem, MiMa [1] has been in widespread use for years. It automatically checks compatibility for the binary API of a library. Every library with

In the Scala ecosystem, MiMa [1] has been in widespread use for years. It automatically checks compatibility for the binary API of a library. Every library with any amount of success uses it. One could say it's the foundation of a stable ecosystem. We also have sbt-version-policy [2] to set it up with minimal configuration (and directly relate it to SemVer). More recently, we got tasty-mima [3], which checks compatibility at the type system level, rather than the binary level. [1] https://github.com/lightbend/mima https://github.com/lightbend/mima [2] https://github.com/scalacenter/sbt-version-policy https://github.com/scalacenter/sbt-version-policy [3] https://github.com/scalacenter/tasty-mima https://github.com/scalacenter/tasty-mima