Starting with IntelliJ IDEA 2025.2, the LSP API is available in Ultimate, even without a paid subscription. Use it for plugin development or integrating LSP-based tools.
Learn more:
platform.jetbrains.com/t/lsp-api-av...
platform.jetbrains.com
LSP API available in IntelliJ IDEA Ultimate 2025.2 without paid subscription
Starting with version 2025.2, the LSP API will be fully available in IntelliJ IDEA Ultimate, regardless of whether a user has a paid license or no license at all. See the blog post: IntelliJ IDEA Mov...