# Next.js v16.3.1-canary.12

- Product: Next.js (https://whatsnew.fyi/product/next-js)
- Vendor: Vercel
- Date: 2026-08-11
- Version: v16.3.1-canary.12
- Original notes: https://github.com/vercel/next.js/releases/tag/v16.3.1-canary.12
- Permalink: https://whatsnew.fyi/product/next-js/releases/v16.3.1-canary.12
- 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** — Bail CJS tree-shaking on var x = module.exports = {}
- **changed** — Accept a module type argument for import.meta.glob in Turbopack
- **fixed** — Fix optimistic routing bugs leading to repeated prefetch loops
- **changed** — Do the CJS analysis needed for scope hoisting in Turbopack
- **removed** — Remove legacy PPR code paths
- **changed** — Use Cache Components as the internal PPR signal
- **changed** — Make legacy PPR paths explicit

###### Misc Changes

- [turbopack] Bail CJS tree-shaking on `var x = module.exports = {}`: #97130
- docs: server client and directives: #96145
- docs: clarify client cache freshness after hydration: #97180
- Fix: Optimistic routing bugs leading to repeated prefetch loops: #97128
- docs: create client-side fetching guide: #96341
- Turbopack: accept a module type argument for import.meta.glob: #96991
- docs: align Cache Components authentication guide title: #97143
- test: re-enable a few more passing NFT unit cases: #97017
- [turbopack] Do the CJS analysis needed for scope hoisting: #95826
- Remove legacy PPR code paths: #96868
- Use Cache Components as the internal PPR signal: #96827
- Make legacy PPR paths explicit: #96753
- fix: typos in code comments: #97137
- Fix spelling in two comments: #97136

###### Credits 

Huge thanks to @sampoder, @icyJoseph, @aurorascharff, @acdlite, @kelvinampofo, @mischnic, @ztanner, and @marcoshernanz for helping!