chore(deps): update dependency typescript to v6#429
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Summary of ChangesHello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request updates the Highlights
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Code Review
This pull request upgrades TypeScript from version 5.9.3 to 6.0.2. A high-severity concern was raised regarding the current tsconfig.json excluding test files from type checking, which could lead to undetected type errors in tests after the major version upgrade. It is recommended to modify tsconfig.json to include test files in the type-checking process to ensure a safer upgrade and catch potential issues early.
| "prettier-plugin-tailwindcss": "0.7.2", | ||
| "tailwindcss": "^4.1.18", | ||
| "typescript": "5.9.3" | ||
| "typescript": "6.0.2" |
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Upgrading to a new major version of TypeScript is a significant change. I've noticed that your tsconfig.json excludes test files (*.test.ts, *.spec.ts, playwright/**/*) from type checking. This is risky because any breaking changes in TypeScript v6 could introduce type errors into your tests that would only be discovered at runtime.
To ensure a safe upgrade and maintain the integrity of your test suite, I highly recommend modifying your tsconfig.json to include test files in the type-checking process. You can do this by removing the following patterns from the exclude array:
"**/*.spec.ts",
"**/*.spec.tsx",
"**/*.test.ts",
"**/*.test.tsx",
"playwright/**/*"This will help catch any potential issues related to breaking changes in the new version early and across your entire codebase.
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Actionable comments posted: 1
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@package.json`:
- Line 226: Update verification for the TypeScript bump: run a full `next build`
locally and CI to confirm no breakages after setting "typescript": "6.0.2" in
package.json, then audit and update tsconfig.json (compilerOptions and lib
targets, module/resolution flags) to accommodate any TS6 changes and strictness
differences; ensure ESLint and typescript-eslint packages (and any eslint parser
settings) are upgraded to versions that support TypeScript 6 so linting
recognizes new syntax, and rerun linting and type checks to surface issues; if
errors appear, adjust tsconfig.json (e.g., target, lib, skipLibCheck) or bump
eslint/@typescript-eslint to compatible releases and re-run `next build` until
the build and lint pipeline succeed.
🪄 Autofix (Beta)
Fix all unresolved CodeRabbit comments on this PR:
- Push a commit to this branch (recommended)
- Create a new PR with the fixes
ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: ASSERTIVE
Plan: Pro
Run ID: d68a46ef-a0fc-4bdd-ba72-f58b6724d35b
📒 Files selected for processing (4)
e2e/accessibility/a11y.spec.tsnext.config.tspackage.jsontsconfig.json
💤 Files with no reviewable changes (1)
- tsconfig.json
| "prettier-plugin-tailwindcss": "0.7.2", | ||
| "tailwindcss": "^4.1.18", | ||
| "typescript": "5.9.3" | ||
| "typescript": "6.0.2" |
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🧩 Analysis chain
🌐 Web query:
Does Next.js 16.1.1 officially support TypeScript 6.0.x for type-checking and production builds?
💡 Result:
Web search failed: Server error: no LLM provider could handle the message
🌐 Web query:
TypeScript 6.0 compatibility with Next.js 16 LTS
💡 Result:
- Yes, TypeScript 6.0 should be usable with Next.js 16 LTS, because Next.js 16’s documented requirement is TypeScript 5+ (minimum 5.1.0)—there’s no stated upper bound. [1][2]
- “Officially supported” vs “works in practice”: Next.js 16 LTS documentation does not explicitly say it has been validated against TypeScript 6.0; it only states the minimum TS version. [1][2]
- Main risk area is tooling around Next.js, not Next.js itself, especially ESLint + typescript-eslint, which commonly emits warnings when you run a TypeScript version it hasn’t declared support for yet (and you may need to upgrade that toolchain accordingly). [3]
- TypeScript 6.0 includes breaking changes/deprecations, so you may need small
tsconfig.jsonadjustments if new defaults impact your project. [4]
Practical check: bump typescript to ^6, run next build, and if you lint/typecheck in CI, ensure your ESLint/typescript-eslint versions are updated to ones that recognize TS 6.0. [1][3]
Sources
[1] Next.js “Upgrading: Version 16” (TS 5+ / min 5.1.0) (nextjs.org)
[2] Next.js 16 announcement (version requirements incl. TS 5+) (nextjs.org)
[3] typescript-eslint parser docs (warning for unsupported TS versions) (typescript-eslint.io)
[4] Microsoft TypeScript blog: “Announcing TypeScript 6.0” (breaking changes/deprecations) (devblogs.microsoft.com)
Citations:
- 1: https://nextjs.org/docs/app/guides/upgrading/version-16?utm_source=openai
- 2: https://nextjs.org/blog/next-16?utm_source=openai
- 3: https://typescript-eslint.io/packages/parser/?utm_source=openai
- 4: https://devblogs.microsoft.com/typescript/announcing-typescript-6-0/?utm_source=openai
Verify TypeScript 6 compatibility in tsconfig.json and ESLint toolchain.
TypeScript 6.0.2 is not explicitly validated by Next.js 16.1.1 documentation, though it should work since Next.js 16 requires TypeScript 5+ with no upper bound. Before merging, test next build and ensure:
tsconfig.jsonaccommodates TypeScript 6.0 breaking changes- ESLint and typescript-eslint versions are updated to recognize TypeScript 6.0
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.
In `@package.json` at line 226, Update verification for the TypeScript bump: run a
full `next build` locally and CI to confirm no breakages after setting
"typescript": "6.0.2" in package.json, then audit and update tsconfig.json
(compilerOptions and lib targets, module/resolution flags) to accommodate any
TS6 changes and strictness differences; ensure ESLint and typescript-eslint
packages (and any eslint parser settings) are upgraded to versions that support
TypeScript 6 so linting recognizes new syntax, and rerun linting and type checks
to surface issues; if errors appear, adjust tsconfig.json (e.g., target, lib,
skipLibCheck) or bump eslint/@typescript-eslint to compatible releases and
re-run `next build` until the build and lint pipeline succeed.
Edited/Blocked NotificationRenovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR. You can manually request rebase by checking the rebase/retry box above. |
1 participant
This PR contains the following updates:
5.9.3→6.0.2Release Notes
microsoft/TypeScript (typescript)
v6.0.2: TypeScript 6.0Compare Source
For release notes, check out the release announcement blog post.
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Summary by CodeRabbit
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Tests