[vorg]

The roadblocks for Apache Groovy migrating to version 3 are imposed by Groovy's backers themselves. They want to keep it as is for as long as possible to keep Gradle users hooked. If a non-compatible Groovy 3.0 comes out, then Gradle users would more likely upgrade from Groovy 2.x to Kotlin instead of to Groovy 3.0 for their build scripting language. The ASF Groovy project managers want to keep their consulting-and-conferences gravy train running for as long as they can.