# Next.js v16.3.1-canary.16

- Product: Next.js (https://whatsnew.fyi/product/next-js)
- Vendor: Vercel
- Date: 2026-08-13
- Version: v16.3.1-canary.16
- Original notes: https://github.com/vercel/next.js/releases/tag/v16.3.1-canary.16
- Permalink: https://whatsnew.fyi/product/next-js/releases/v16.3.1-canary.16
- Labels: Pre-release

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Skip 0-byte entries when initializing disk LRU cache in next/image
- **fixed** — Fix infinite recursion in testmode passthrough fetch
- **changed** — Unify how a response's shell and full payloads are written
- **changed** — Convert per-segment prefetches to NavigationFlightResponse format
- **changed** — Unify how server responses are written into the client cache
- **changed** — Convert tree prefetches to NavigationFlightResponse format
- **changed** — Revert i18n localization change for dynamic Pages API routes
- **changed** — Migrate napi-rs bindings from v2 to v3
- **changed** — Upgrade React from 11eddecd-20260805 to 22e4f993-20260811
- **added** — Add RDC compression rollout controls

###### Misc Changes

- Unify how a response's shell and full payloads are written: #96878
- Convert per-segment prefetches to NavigationFlightResponse format: #96877
- Unify how server responses are written into the client cache: #96876
- Convert tree prefetches to NavigationFlightResponse format: #96788
- Revert i18n localization change for dynamic Pages API routes (#94905): #97327
- fix(next/image): skip 0-byte entries when initializing disk LRU cache: #94068
- Update authentication diagram URL: #97320
- Add a script for adopting fork pull requests: #97252
- Migrate napi-rs bindings from v2 to v3: #95412
- Upgrade React from `11eddecd-20260805` to `22e4f993-20260811`: #97249
- Add RDC compression rollout controls: #97247
- [testmode] Fix infinite recursion in testmode passthrough fetch: #96525

###### Credits 

Huge thanks to @acdlite, @gaojude, @hammadxcm, @marcoshernanz, @eps1lon, @jimmyhmiller, @gnoff, and @lazerg for helping!