TypeScript 6.0 Released: The Final JavaScript-Based Version
Blog post from Socket
TypeScript 6.0 has been released as the last version built on the JavaScript codebase, setting the stage for the Go-native TypeScript 7.0, which is nearing completion. This version introduces new standard library APIs, aligns with recent JavaScript features, and implements a significant defaults overhaul that requires immediate updates to tsconfig.json for many projects. Notable changes include stricter JavaScript baselines, new methods for Map and WeakMap, and support for Node.js-style subpath imports. The release also begins deprecating legacy features to optimize the upcoming TypeScript 7.0, with several defaults aimed at improving build performance and modernizing project setups. The TypeScript team is actively seeking feedback on these changes and anticipates the release of TypeScript 7.0 within months, as it is already seeing adoption in large codebases.
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