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Bump postcss, next and @tailwindcss/postcss - #9

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Bump postcss, next and @tailwindcss/postcss#9
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@dependabot dependabot Bot commented on behalf of github Aug 6, 2026

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Bumps postcss, next and @tailwindcss/postcss. These dependencies needed to be updated together.
Updates postcss from 8.5.16 to 8.5.23

Release notes

Sourced from postcss's releases.

8.5.23

  • Do not load source map without opts.from for security reasons.

8.5.22

8.5.21

8.5.20

8.5.19

  • Fixed cleaning before for new nodes inserted to Root (by @​MahinAnowar).

8.5.18

  • Restricted loading previous source maps file to the opts.from folder for security reasons (use unsafeMap: true to disable the check).

8.5.17

  • Fixed Maximum call stack size exceeded error.
  • Fixed Prototype hijacking for postcss.fromJSON().
  • Fixed Input#origin() for unmapped end position (by @​chatman-media).
Changelog

Sourced from postcss's changelog.

8.5.23

  • Do not load source map without opts.from for security reasons.

8.5.22

8.5.21

8.5.20

8.5.19

  • Fixed cleaning before for new nodes inserted to Root (by @​MahinAnowar).

8.5.18

  • Restricted loading previous source maps file to the opts.from folder for security reasons (use unsafeMap: true to disable the check).

8.5.17

  • Fixed Maximum call stack size exceeded error.
  • Fixed Prototype hijacking for postcss.fromJSON().
  • Fixed Input#origin() for unmapped end position (by @​chatman-media).
Commits

Updates next from 16.2.6 to 16.3.0

Release notes

Sourced from next's releases.

v16.3.0

Core Changes

  • Update vendored lodash to 4.17.23 to fix CVE-2025-13465: #91558
  • Fix invalid HTML response for route-level RSC requests in deployment adapter: #91541
  • Normalize encoded dynamic placeholders in app routes: #91603
  • Fix(pages-router): restore Content-Length and ETag for /_next/data/ JSON responses: #90304
  • Update tokio from 1.43.0 to 1.47.3: #90945
  • [turbopack] Simplify snapshotting logic: #91178
  • Turbopack: enable server HMR for app route handlers: #91466
  • turbo-tasks-backend: batch find_and_schedule_dirty using for_each_task_meta: #91497
  • [turbopack] Use bail! instead of panic! for duplicate module ident error: #91636
  • Skip loadBindings() Lightning CSS check during next start: #91538
  • turbo-tasks-backend: batch schedule dirty tasks in aggregation_update: #91461
  • Turbopack: Add importModule() support to webpack loaders: #89630
  • turbo-persistence: fix mmap page alignment and improve error context in MetaFile::open_internal: #91640
  • turbopack-css: demote recoverable CSS parse warnings to Warning severity: #91524
  • feat(node-streams): add config flag, define-env, and env precedence test: #90427
  • Rename /_next/webpack-hmr to /_next/hmr: #91415
  • Add per-slot error attribution for instant validation using slot markers and config depth preference: #91610
  • Handle encoded params further: #91627
  • [turbopack] Respect {eval:true} in worker_threads constructors: #91666
  • Fix missing route in otel spans without base-server: #91665
  • [turbopack] Optimize compaction cpu usage: #91468
  • Fix layout segment optimization: move app-page imports to server-utility transition: #91701
  • Fix server actions in standalone mode with cacheComponents: #91711
  • turbo-persistence: remove Unmergeable mmap advice: #91713
  • turbopack: move "compact database" tracing span to backend layer: #91693
  • Turbopack: lazy require metadata and handle TLA: #91705
  • Fix adapter outputs for dynamic metadata routes: #91680
  • Turbopack: fix webpack loader runner layer: #91727
  • [turbopack] Remove incorrect debug_assert in try_read_task_cell: #91699
  • Add module count field to module graph tracing spans: #91697
  • turbopack-cli: add --persistent-caching flag for filesystem-backed cache: #91657
  • Turbopack: pull in updated vercel/nft tests: #91651
  • [turbopack] Improve regressed build speed on cross-compiled MUSL: #91477
  • [Segment Bundling] [Scaffolding] Ensure inlining hint correctness: #91320
  • [Segment Bundling] [Scaffolding] Track which segments can be omitted from prefetch: #91438
  • Avoid deprecated TS node10 moduleResolution defaults: #91847
  • [turbopack] Rebuild the docker build scripts: #91799
  • Fix TS6 baseUrl deprecation for extended tsconfig: #91855
  • Add next internal post-build CLI command for Turbopack database compaction: #91336
  • Turbopack: Define Effect as a trait instead of a closure: #89080
  • Turbopack: Implement TraceRawVcs and NonLocalValue correctly for Effects: #89133
  • turbo-tasks-backend: improve print_cache_item_size instrumentation: #91742
  • Turbopack: switch from base40 to base38 hash encoding (remove ~ and . from charset): #91832
  • Use charCodeAt for normalizePathTrailingSlash: #91380
  • Turbopack: Only patch lockfile when bindings fails to load: #91379
  • [create-next-app] Skip interactive prompts when CLI flags are provided: #91840
  • [devtools] Make instant navs panel draggable: #91914
  • [Segment Bundling] Bundle static prefetches based on size: #91439

... (truncated)

Commits

Updates @tailwindcss/postcss from 4.3.1 to 4.3.3

Release notes

Sourced from @​tailwindcss/postcss's releases.

v4.3.3

Fixed

  • Support --watch --poll[=ms] in @tailwindcss/cli when filesystem events are unreliable or unavailable (#20297)
  • Canonicalization: match arbitrary hex colors against theme colors case-insensitively (e.g. bg-[#fff] and bg-[#FFF] → bg-white) (#20298)
  • Prevent Preflight from overriding Firefox's native iframe:focus-visible outline styles (#20292)
  • Ensure theme('colors.foo') in JS plugins resolves correctly when both --color-foo and --color-foo-bar exist (#20299)
  • Ensure fractional opacity modifiers work with named shadow sizes like shadow-sm/12.5, text-shadow-sm/12.5, drop-shadow-sm/12.5, and inset-shadow-sm/12.5 (#20302)
  • Parse selectors like [data-foo]div as two selectors instead of one (#20303)
  • Ensure @tailwindcss/postcss rebuilds when a preprocessor like Sass changes the input CSS without changing the input file on disk (#20310)
  • Ensure CSS nesting is handled even when Lightning CSS isn't run, such as in @tailwindcss/browser and Tailwind Play (#20124)
  • Prevent achromatic theme colors from shifting hue when mixed in polar color spaces like oklch (#20314)
  • Ensure --spacing(0) is optimized to 0px instead of 0 so it remains a <length> when used in calc(…) (#20319)
  • Load @parcel/watcher only when needed in @tailwindcss/cli --watch mode, so one-off builds and --watch --poll work when @parcel/watcher can't be loaded (#20325)
  • Use explicit platform fonts instead of system-ui and ui-sans-serif so CJK text respects the page's lang attribute on Windows (#20318)
  • Prevent @tailwindcss/upgrade from rewriting ignored files when run from a subdirectory (#20329)
  • Ensure earlier @source rules pointing to nested files are scanned when later @source rules point to files in parent folders (#20335)
  • Prevent @tailwindcss/vite from triggering full page reloads when scanned files are processed by Vite but haven't been loaded as modules yet (#20336)

v4.3.2

Fixed

  • Support bare spacing values for auto-rows-* and auto-cols-* utilities (e.g. auto-rows-12 and auto-cols-16) (#20229)
  • Prevent @tailwindcss/cli in --watch mode from crashing on Windows when @source points to a directory that doesn't exist (#20242)
  • Prevent @tailwindcss/vite from crashing in Deno v2.8.x when context.parentURL is not a valid URL (#20245)
  • Ensure @tailwindcss/cli in --watch mode rebuilds when the input CSS file changes in an ignored directory (#20246)
  • Allow @variant rules used in addBase(…) to use custom variants defined later (#20247)
  • Prevent @tailwindcss/vite from crashing during HMR when scanned files or directories are deleted (#20259)
  • Generate font-size instead of color declarations for text-[--spacing(…)] (#20260)
  • Prevent @source patterns from scanning unrelated sibling files and folders (#20263)
  • Extract class candidates adjacent to Template Toolkit delimiters like %]…[% in .tt, .tt2, and .tx files (#20269)
  • Extract class candidates from conditional Maud syntax like p.text-black[condition] (#20269)
  • Prevent @position-try rules from triggering unknown at-rule warnings when optimizing CSS (#20277)
  • Support class suggestions for named opacity modifiers from --opacity theme values (#20287)
  • Prevent type errors in @tailwindcss/postcss when used with newer PostCSS patch releases (#20289)
Changelog

Sourced from @​tailwindcss/postcss's changelog.

[4.3.3] - 2026-07-16

Fixed

  • Support --watch --poll[=ms] in @tailwindcss/cli when filesystem events are unreliable or unavailable (#20297)
  • Canonicalization: match arbitrary hex colors against theme colors case-insensitively (e.g. bg-[#fff] and bg-[#FFF] → bg-white) (#20298)
  • Prevent Preflight from overriding Firefox's native iframe:focus-visible outline styles (#20292)
  • Ensure theme('colors.foo') in JS plugins resolves correctly when both --color-foo and --color-foo-bar exist (#20299)
  • Ensure fractional opacity modifiers work with named shadow sizes like shadow-sm/12.5, text-shadow-sm/12.5, drop-shadow-sm/12.5, and inset-shadow-sm/12.5 (#20302)
  • Parse selectors like [data-foo]div as two selectors instead of one (#20303)
  • Ensure @tailwindcss/postcss rebuilds when a preprocessor like Sass changes the input CSS without changing the input file on disk (#20310)
  • Ensure CSS nesting is handled even when Lightning CSS isn't run, such as in @tailwindcss/browser and Tailwind Play (#20124)
  • Prevent achromatic theme colors from shifting hue when mixed in polar color spaces like oklch (#20314)
  • Ensure --spacing(0) is optimized to 0px instead of 0 so it remains a <length> when used in calc(…) (#20319)
  • Load @parcel/watcher only when needed in @tailwindcss/cli --watch mode, so one-off builds and --watch --poll work when @parcel/watcher can't be loaded (#20325)
  • Use explicit platform fonts instead of system-ui and ui-sans-serif so CJK text respects the page's lang attribute on Windows (#20318)
  • Prevent @tailwindcss/upgrade from rewriting ignored files when run from a subdirectory (#20329)
  • Ensure earlier @source rules pointing to nested files are scanned when later @source rules point to files in parent folders (#20335)
  • Prevent @tailwindcss/vite from triggering full page reloads when scanned files are processed by Vite but haven't been loaded as modules yet (#20336)

[4.3.2] - 2026-06-26

Fixed

  • Support bare spacing values for auto-rows-* and auto-cols-* utilities (e.g. auto-rows-12 and auto-cols-16) (#20229)
  • Prevent @tailwindcss/cli in --watch mode from crashing on Windows when @source points to a directory that doesn't exist (#20242)
  • Prevent @tailwindcss/vite from crashing in Deno v2.8.x when context.parentURL is not a valid URL (#20245)
  • Ensure @tailwindcss/cli in --watch mode rebuilds when the input CSS file changes in an ignored directory (#20246)
  • Allow @variant rules used in addBase(…) to use custom variants defined later (#20247)
  • Prevent @tailwindcss/vite from crashing during HMR when scanned files or directories are deleted (#20259)
  • Generate font-size instead of color declarations for text-[--spacing(…)] (#20260)
  • Prevent @source patterns from scanning unrelated sibling files and folders (#20263)
  • Extract class candidates adjacent to Template Toolkit delimiters like %]…[% in .tt, .tt2, and .tx files (#20269)
  • Extract class candidates from conditional Maud syntax like p.text-black[condition] (#20269)
  • Prevent @position-try rules from triggering unknown at-rule warnings when optimizing CSS (#20277)
  • Support class suggestions for named opacity modifiers from --opacity theme values (#20287)
  • Prevent type errors in @tailwindcss/postcss when used with newer PostCSS patch releases (#20289)
Commits

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@dependabot
Bump postcss, next and @tailwindcss/postcss
7e9ac6b 
Bumps [postcss](https://github.com/postcss/postcss), [next](https://github.com/vercel/next.js) and [@tailwindcss/postcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/@tailwindcss-postcss). These dependencies needed to be updated together.

Updates `postcss` from 8.5.16 to 8.5.23
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.16...8.5.23)

Updates `next` from 16.2.6 to 16.3.0
- [Release notes](https://github.com/vercel/next.js/releases)
- [Commits](vercel/next.js@v16.2.6...v16.3.0)

Updates `@tailwindcss/postcss` from 4.3.1 to 4.3.3
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/tailwindlabs/tailwindcss/commits/v4.3.3/packages/@tailwindcss-postcss)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.23
  dependency-type: direct:development
- dependency-name: next
  dependency-version: 16.3.0
  dependency-type: direct:production
- dependency-name: "@tailwindcss/postcss"
  dependency-version: 4.3.3
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Aug 6, 2026
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