TanStack Charts is a new, framework-agnostic visualization library for TypeScript. It allows developers to create visualizations by composing various elements instead of using fixed chart types. Currently in Alpha, it has about 160,000 weekly downloads. The library supports multiple frameworks and is designed for a variety of environments, though it is not yet stable for production use.

Jotai, an atomic state management library for React, has released version 3.0.0, now exclusively using ES modules. It maintains backward compatibility but removes some deprecated APIs. Migration is straightforward for most users. This version emphasizes a leaner core with improvements while deferring significant feature changes for future updates.

Meta recently announced the beta release of Astryx, an open-source React design system developed internally over eight years. Astryx builds on React 19 and StyleX to provide over 150 accessible UI components, customizable CSS design tokens, and dedicated CLI and MCP tooling — for both engineers and AI agents.

tsgolint has released a stable v7, enhancing TypeScript linting with native Go speed. It offers type-aware linting, leveraging TypeScript's semantic analysis through the typescript-go compiler. Oxlint manages configurations and file discovery. The release, compatible with TypeScript 7.0.2, handles 59 of 61 type-aware rules and shows significant performance improvements over ESLint.

Cloudflare recently announced the preview of EmDash, a new open-source CMS it describes as a “spiritual successor to WordPress.” Designed to rebuild the CMS model around a serverless, developer-focused architecture, EmDash includes AI-native features, developer tooling, and migration paths from WordPress, sparking debate across the WordPress and broader CMS community.