IntelliJ Scala Plugin in 2025 This is a blog post about the main changes to the Scala Plugin in 2025, the results of the State of Developer Ecosystem Survey, and a few other things.

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The IntelliJ Scala Plugin received significant updates in 2025, including enhanced Scala 3 support for named tuples, opaque types, context bounds, and the new into modifier. The plugin now defaults to a new sbt modules layout, improved X-Ray mode with better type hints and apply call displays, and delivered performance optimizations for editor actions. Survey data shows Scala 3 adoption at 59% regular usage, with ZIO gaining popularity (32%) and Pekko rising to 22% as Akka declines to 28%. JetBrains released eight YouTube videos covering plugin features and sponsored major Scala conferences including Scalar and Scala Days.

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