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chore(deps): update devdependencies #72

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4 changes: 2 additions & 2 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -86,7 +86,7 @@
"eslint-plugin-prettier": "^5.0.0",
"husky": "9.1.7",
"jest": "^29.2.0",
"lint-staged": "16.2.3",
"lint-staged": "16.2.7",
"mkdirp": "^1.0.3",
"npm-run-all2": "^7.0.1",
"prettier": "^3.0.0",
Expand All @@ -98,7 +98,7 @@
"stylelint-config-standard": "^34.0.0",
"stylelint-csstree-validator": "^3.0.0",
"stylelint-prettier": "^4.0.0",
"typescript": "~5.8.0",
"typescript": "~5.9.0",
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⚠️ Potential issue | 🟠 Major

🧩 Analysis chain

🌐 Web query:

TypeScript 5.9 release notes breaking changes

💡 Result:

Summary of breaking / notable behavioral changes in TypeScript 5.9

  • Type argument inference changes — fixes to “leaking” type variables can make previously-accepted code produce new type errors; common workaround is supplying explicit type arguments. [1][2]

  • ArrayBuffer / typed-array relationship changed — ArrayBuffer is no longer treated as a supertype of typed arrays (and this affects Node Buffer interop), which can surface new assignment/compatibility errors; updating @types/node or using explicit buffer types is recommended. [2][3]

  • lib.d.ts / DOM type updates — several DOM typings were changed (including restoration of AbortSignal.abort), producing new errors in code that relied on the prior shapes. Review DOM-related types if you rely on them. [1][2]

  • Other behavioral changes called out in release notes — new module target (--module node20), support for import defer, and editor/hover UX changes are not breaking themselves but accompany the above type-system changes that may affect code. [1][2]

Sources

  • TypeScript 5.9 release notes (official docs). [1]
  • “Announcing TypeScript 5.9” (TypeScript blog / DevBlogs). [2]
  • GitHub discussion / issues summarizing breaking/behavioral changes (examples). [3]

Would you like a brief checklist and example fixes for each breaking change (e.g., how to fix common ArrayBuffer/Buffer errors or add explicit generics)?

Check for TypeScript 5.9 breaking changes in the codebase.

TypeScript 5.9 introduces breaking changes: type argument inference changes (may trigger new type errors), ArrayBuffer/typed-array relationship changes (affects Node Buffer interop), and DOM type updates. Verify existing code doesn't depend on prior shapes, supply explicit type arguments where needed, and ensure the build succeeds.

🤖 Prompt for AI Agents 
In package.json around line 101, the bump to "typescript": "~5.9.0" may surface
breaking changes (type-argument inference, ArrayBuffer/typed-array/Buffer
interop, DOM updates); run a full TypeScript build and test suite, fix any new
compile errors by adding explicit generic type arguments where inference fails,
update usages that rely on previous typed-array/ArrayBuffer relationships
(adjust Buffer/TypedArray conversions or add helper casts), and reconcile any
DOM type changes by tightening or narrowing affected types or installing
appropriate lib entries; iterate until tsc --noEmit and CI pass.

"yjs": "^13.5.0"
},
"lint-staged": {
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