# Next.js v16.4.0-canary.12

- Product: Next.js (https://whatsnew.fyi/product/next-js)
- Vendor: Vercel
- Date: 2026-08-29
- Version: v16.4.0-canary.12
- Original notes: https://github.com/vercel/next.js/releases/tag/v16.4.0-canary.12
- Permalink: https://whatsnew.fyi/product/next-js/releases/v16.4.0-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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- **changed** — Store keys in key order in SST blocks that omit hashes
- **changed** — Honor non-interactive mode in upgrade codemod prompts
- **changed** — Transform .mjs files with Next.js codemods

###### Misc Changes

- [ci] Remove the popular workflow and its action: #97753
- Store keys in key order in SST blocks that omit hashes: #97480
- Honor non-interactive mode in upgrade codemod prompts: #98030
- Transform .mjs files with Next.js codemods: #98029

###### Credits 

Huge thanks to @eps1lon, @lukesandberg, and @devjiwonchoi for helping!