September 2025: Key engineering and developer experience improvements across the stan-language-server and project tooling. Delivered a robust, handler-based compilation flow, improved startup reliability, CI/CD automation, and library-first readiness, while fixing critical bugs and clarifying docs.

Summary for 2025-08: Delivered significant improvements to CI/test reliability, expanded the language-server capabilities with a robust completion framework, and strengthened code quality through targeted fixes and refactors. These efforts reduced release risk, improved developer productivity, and enhanced IDE support for Stan language features.

July 2025: Stan Language Server (avehtari/stan-language-server) delivered a solid baseline with Bun-based runtime, observability, and release automation. The work enables a reliable, cross-platform language server with a repeatable release process, accelerating iteration and reducing release risk for developers relying on VS Code LSP integration.