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Notable Changes in IntelliJ Platform and Plugins API 2025.*

Early Access Program (EAP) releases of upcoming versions are available here.

2025.1

IntelliJ Platform 2025.1

ContainerUtil using unmodifiable collections

Methods marked with @Unmodifiable now really return unmodifiable collections (only in internal /test mode for now).

Last modified: 08 January 2025
Notable Changes and Features in IntelliJ Platform and Plugins APINotable Changes in IntelliJ Platform and Plugins API 2024.*