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TypeScript changelog digest

Jun 1 - Jun 7, 2026. Useful releases, risky migrations, and noisy updates from the TypeScript channel.

No matching updates in this bucket.

TypeScript updates in 2026-w23

2026-06-01, Version 26.3.0 (Current), @aduh95

  • Increase Buffer.poolSize default to 64 KiB and add new Buffer‑related improvements; introduce httpValidation option for stricter header validation and permission.drop API; upgrade crypto root certificates to NSS 3.123.1, harden WebCrypto...
  • Significant QUIC enhancements including new options (rate limiting, session creation limits, hostname verification, idle timeout, etc.) and performance tweaks; update npm to 11.16.0 and improve build pipelines (VS2022 arm64 PGO, Thin LTO...