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@dependabot dependabot bot commented on behalf of github Oct 1, 2025

Bumps typescript from 5.5.4 to 5.9.3.

Release notes

Sourced from typescript's releases.

TypeScript 5.9.3

TypeScript 5.9

For release notes, check out the release announcement

Downloads are available on:

TypeScript 5.9 RC

For release notes, check out the release announcement

Downloads are available on:

TypeScript 5.9 Beta

For release notes, check out the release announcement.

Downloads are available on:

TypeScript 5.8.3

For release notes, check out the release announcement.

Downloads are available on:

TypeScript 5.8

... (truncated)

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@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update Javascript code labels Oct 1, 2025
@dependabot dependabot bot requested a review from a team as a code owner October 1, 2025 17:07
@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update Javascript code labels Oct 1, 2025
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coderabbitai bot commented Oct 1, 2025

Summary by CodeRabbit

  • Chores
    • Upgraded the TypeScript development dependency to 5.9.3 to improve type checking, editor tooling, and alignment with the latest language features.
    • No runtime or API changes; application behavior and builds remain unchanged.
    • End users should not experience any visible differences.
    • CI and local development now use the updated TypeScript toolchain.

Walkthrough

Updated package.json to bump the devDependency "typescript" from ^5.5.4 to ^5.9.3. No other dependencies, scripts, exports, or runtime code were changed.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Pre-merge checks and finishing touches

✅ Passed checks (3 passed)
Check name Status Explanation
Title Check ✅ Passed The title “chore(deps-dev): bump typescript from 5.5.4 to 5.9.3” clearly and concisely summarizes the main change in the pull request by indicating the dependency being updated and the specific version bump, using conventional commit style to reflect a dev‐dependency chore.
Docstring Coverage ✅ Passed No functions found in the changes. Docstring coverage check skipped.
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
✨ Finishing touches
  • 📝 Generate docstrings
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment
  • Commit unit tests in branch dependabot/npm_and_yarn/typescript-5.9.3

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Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

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📥 Commits

Reviewing files that changed from the base of the PR and between 04f06ab and 7253e8a.

⛔ Files ignored due to path filters (1)
  • package-lock.json is excluded by !**/package-lock.json
📒 Files selected for processing (1)
  • package.json (1 hunks)

"@semantic-release/release-notes-generator": "^14.1.0",
"semantic-release": "^24.2.9",
"typescript": "^5.5.4",
"typescript": "^5.9.3",
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⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

Confirm TS 5.9 upgrade doesn’t surface new type errors.

TypeScript 5.9 tightens type argument inference and adjusts DOM/lib typings (for example, ArrayBuffer no longer covers Node Buffer), so code that passed under 5.5.4 may now fail to type-check. Please rerun the full TypeScript lint pipeline and address any regressions before merging; if you encounter new Buffer/ArrayBuffer errors, update @types/node to the latest compatible release. (visualstudiomagazine.com)


🏁 Script executed:

#!/bin/bash
npm install
npm run lint:ts

Length of output: 2059


Update @types/node to resolve TS 5.9 Buffer typing errors.

The upgrade to TypeScript 5.9 exposes mismatches in @types/node Buffer declarations (errors in buffer.d.ts and fs/promises.d.ts). Install the latest compatible Node types (e.g. npm install -D @types/node@latest), then rerun npm run lint:ts until tsc --noEmit passes.

🤖 Prompt for AI Agents
In package.json around line 42, TypeScript 5.9 exposes type mismatches with the
currently installed @types/node; update the Node type definitions to a version
compatible with TS 5.9 by installing the latest @types/node as a dev dependency
(e.g. run npm install -D @types/node@latest or update devDependencies entry),
then rerun npm run lint:ts and tsc --noEmit and iterate (adjust the @types/node
version to match your Node runtime if needed) until the TypeScript build/lint
errors in buffer.d.ts and fs/promises.d.ts are resolved.

@dependabot dependabot bot force-pushed the dependabot/npm_and_yarn/typescript-5.9.3 branch from 7253e8a to fdc118a Compare October 14, 2025 17:08
@dependabot dependabot bot force-pushed the dependabot/npm_and_yarn/typescript-5.9.3 branch from fdc118a to a88a78f Compare October 15, 2025 17:08
@dependabot dependabot bot force-pushed the dependabot/npm_and_yarn/typescript-5.9.3 branch from a88a78f to b983db5 Compare October 15, 2025 17:10
Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.5.4 to 5.9.3.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release-publish.yml)
- [Commits](microsoft/TypeScript@v5.5.4...v5.9.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 5.9.3
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot force-pushed the dependabot/npm_and_yarn/typescript-5.9.3 branch from b983db5 to 0f76a7a Compare October 20, 2025 17:20
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