April 2026 monthly summary for assistant-ui/assistant-ui: Focused on TypeScript typing compatibility improvements for projects using legacy Node module resolution. Implemented fix by adding typesVersions to support moduleResolution: node, ensuring correct sub-path type resolution and reducing typing errors for adopters of older setups. The change aligns TS type resolution with modern expectations while preserving compatibility with older toolchains. This work reduces onboarding friction for TypeScript users and improves reliability of the UI library across diverse TS configurations.

January 2026 (cal.com repository: calcom/cal.com) — Security hardening and stability enhancements. No new user-facing features delivered this month; the focus was on remediation of vulnerabilities and dependency stability to support upcoming roadmap. Major work included upgrading React to 19.2.3 to patch security vulnerabilities and reverting a prior lingo.dev upgrade to maintain compatibility. All changes were tracked and reviewed via commits in the repository (example: fix: patch React 19 vulnerabilities by upgrading to 19.2.3, hash 9c08c5fed1dee0556e07fd86a98d80150675d6af).