Open-Sourcing the LSP Client API in IntelliJ IDEA 2026.2
JetBrains is open-sourcing the LSP client API in IntelliJ IDEA 2026.2, making it available across all IntelliJ Platform-based IDEs including Android Studio. Previously, the LSP integration was a commercial IDE extension unavailable in open-source builds, forcing plugin authors to either go without LSP support or write custom clients from scratch. The API is also being renamed for clarity — LspServer becomes LspClient and the provider moves to LspIntegrationProvider. The change is planned for the 2026.1.4 stable build as well, meaning Android Studio support may arrive before 2026.2. Plugin authors using the existing JetBrains LSP API should watch for the naming changes, while those using LSP4IJ or custom clients are advised to evaluate migration carefully based on their specific needs.