weekly changelog digest

TypeScript changelog digest

Mar 16 - Mar 22, 2026. Useful releases, risky migrations, and noisy updates from the TypeScript channel.

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TypeScript updates in 2026-w12

4 updates

Next.js3 months agoMar 20, 2026, 11:32 PMUsefulAI-assisted summary

score 0

~Backported bug fixes for core and Turbopack, including adapter output handling, server actions in standalone mode, and layout segment optimization.
~Updated documentation: Core Changes post‑release amendments and fixed broken Activity Patterns demo link in the preserving UI state guide.
!Improved Turbopack with lazy metadata require, respect for {eval:true} in worker thread constructors, and a fix for the webpack loader runner layer.

bugfixdocsminorsource needs review

Next.js3 months agoMar 19, 2026, 06:17 PMUsefulAI-assisted summary

score 0

+Add LRU disk cache and images.maximumDiskCacheSize option to next/image (feature).
~Fix pages router to restore Content‑Length and ETag headers for /next/data/ JSON responses (bugfix).
~Backport bug fixes without including pending canary features (minor).

featurebugfixminorsource needs review

Next.js3 months agoMar 16, 2026, 11:29 PMUsefulAI-assisted summary

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Security-relevantbugfixsecurityminorsource needs review

Next.js3 months agoMar 16, 2026, 11:27 PMUsefulAI-assisted summary

score 0

~Fixed multiple security vulnerabilities (CVE‑2026‑27977‑27980, CVE‑2026‑29057) and prevented request smuggling and unsafe websocket connections.
+Resolved hanging streaming fetch calls, ensured maxPostponedStateSize compliance, and applied server‑action transforms to node modules in route handlers.
+Added LRU disk cache and configurable maximumDiskCacheSize to next/image.

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