chore(deps): update postcss packages

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
postcss (source)	^8.5.6 → ^8.5.26
postcss-import	^16.1.1 → ^16.2.0
postcss-preset-env (source)	^10.4.0 → ^10.6.1
postcss-url	^10.1.3 → ^10.1.4

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Release Notes

postcss/postcss (postcss)

v8.5.26

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• Fixed list.split() regression (by @​lazerg).
• Track symlinks in path protection in source map loading (by @​drengir1).

v8.5.25

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• Fixed 8.5.17 visitor regression.
• Fixed list.split() for non-string values (by @​amir-rezaei).

v8.5.24

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• Preserve the BOM after the processing (by @​hdimer).

v8.5.23

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

v8.5.22

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• Fixed custom property losing semicolon before a comment (by @​sarathfrancis90).

v8.5.21

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• Fixed childless at-rule losing semicolon before comment (by @​sarathfrancis90).
• Fixed docs (by @​isker).

v8.5.20

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• Fixed missing space if AtRule#params is set after (by @​sarathfrancis90).
• Fixed mixing AST error on warnings (by @​MahinAnowar).

v8.5.19

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

v8.5.18

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

v8.5.17

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

v8.5.16

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• Fixed Input#origin() position (by @​mizdra).
• Fixed raws after rehydrating a JSON AST (by @​sarathfrancis90).
• Fixed putting parent-less node in nodes of new node (by @​MahinAnowar).
• Fixed computing offset in positionBy() (by @​greymoth-jp).
• Fixed rangeBy() on index: 0 (by @​sarathfrancis90).

v8.5.15

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• Fixed declaration parsing performance (by @​homanp).

v8.5.14

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• Fixed custom syntax regression (by @​43081j).

v8.5.13

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• Fixed postcss-scss commend regression.

v8.5.12

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• Fixed reading any file via user-generated CSS.
• Added opts.unsafeMap to disable checks.

v8.5.11

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• Fixed nested brackets parsing performance (by @​offset).

v8.5.10

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• Fixed XSS via unescaped </style> in non-bundler cases (by @​TharVid).

v8.5.9

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• Speed up source map encoding paring in case of the error.

v8.5.8

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• Fixed Processor#version.

v8.5.7

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• Improved source map annotation cleaning performance (by CodeAnt AI).

postcss/postcss-import (postcss-import)

v16.2.0

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• Better whitespace formatting on modern postcss versions (#​605)
• Better error message when @imports are interleaved with @layers (#​566, #​606)
• Docs clarification (#​598)

csstools/postcss-plugins (postcss-preset-env)

v10.6.1

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January 10, 2026

• Updated @csstools/postcss-normalize-display-values to 4.0.1 (patch)

v10.6.0

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December 27, 2025

• Added @csstools/postcss-property-rule-prelude-list Check the plugin README for usage details.
• Added @csstools/postcss-syntax-descriptor-syntax-production Check the plugin README for usage details.
• Updated cssdb to 8.6.0

v10.5.0

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December 4, 2025

• Added @csstools/postcss-position-area-property Check the plugin README for usage details.
• Updated cssdb to 8.5.2 (patch)

postcss/postcss-url (postcss-url)

v10.1.4

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Fixed: update minimatch dependency to address CVEs https://nvd.nist.gov/vuln/detail/CVE-2026-27903 https://nvd.nist.gov/vuln/detail/CVE-2026-27904 https://nvd.nist.gov/vuln/detail/CVE-2026-26996 by @​diegocr

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