IntelliJ Scala Plugin in 2025 | The IntelliJ Scala Plugin Blog

In 2025, the Scala Plugin for IntelliJ IDEA saw significant advancements, including enhanced support for Scala 3 features such as named tuples, "better fors" in for-comprehensions, and the introduction of the "into" modifier, all aimed at closing the feature gap with the evolving Scala compiler. The plugin also improved its sbt integration, enabling a new default modules layout, and prepared for sbt 2.0 support. X-Ray mode received updates to provide better insights into code usage, while performance enhancements reduced editor lag and UI freezes. JetBrains' annual developer survey highlighted Scala 3's growing popularity, with 59% of respondents using it regularly, and a shift in the landscape of unit testing frameworks and libraries, where ScalaTest maintained its lead, but MUnit, ZIOTest, and ZIO gained traction. The company also expanded its educational efforts with a new series of YouTube videos and maintained a strong presence in the Scala community by sponsoring major conferences and delivering talks on plugin features and productivity tools.