Does anyone know if Kotlin 1.3 is backwards compatible with 1.2? Got a library using Kotlin and want to know if upgrading to 1.3 will be a big deal for apps that are using 1.2

Not speaking as an expert, but typically "dot" releases (1.2 -> 1.3, as opposed to a major release 1.x -> 2.0) don't break existing contracts.

@LeoColman yeah, I'm not sure either

Thanks all. Few sources on kotlinlang.org suggest newer releases of Kotlin for the JVM are backwards compatible with older release, so assuming that’s the case. https://kotlinlang.org/docs/reference/evolution/kotlin-evolution.html https://kotlinlang.org/docs/reference/evolution/components-stability.html