bump typescript to 5.9.3

[yoshi-taka]

Upgraded to TypeScript 5.9.3.
No impact on the existing code.

[coderabbitai]

Walkthrough

The TypeScript devDependency version constraint in package.json was bumped up from ~5.5.4 to ~5.9.3. This updates the tilde range to allow TypeScript patch and minor version updates within the 5.9.x line. No other dependencies or configuration files were touched, so there's no runtime impact—just the development tooling version getting a refresh.

Pre-merge checks

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title Check	✅ Passed	The PR title "bump typescript to 5.9.3" directly and clearly describes the main change in the changeset—updating the TypeScript devDependency version. It's concise, specific, and avoids vague language or noise. A reviewer scanning the git history would immediately understand this is a TypeScript dependency upgrade to version 5.9.3.
Description Check	✅ Passed	The PR description "Upgraded to TypeScript 5.9.3. No impact on the existing code." is directly related to the changeset and provides relevant context about the upgrade. It clearly communicates what was changed and importantly notes that there's no runtime impact, which is meaningful information for reviewers. The description isn't vague or off-topic.

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 8d336c4 and 5c3afc1.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (1)

• package.json (1 hunks)

🧰 Additional context used

📓 Path-based instructions (4)

**/*.{js,jsx,ts,tsx,mjs,cjs,json}

📄 CodeRabbit inference engine (CLAUDE.md)

Enforce line width of 120 characters via Biome formatting

Files:

• package.json

**/*.json

📄 CodeRabbit inference engine (CLAUDE.md)

Do not use trailing commas in JSON files

Files:

• package.json

package.json

📄 CodeRabbit inference engine (.cursor/rules/development-setup.mdc)

Project uses ES modules; ensure package.json sets "type": "module"

Files:

• package.json

{package.json,packages/**/package.json}

📄 CodeRabbit inference engine (.cursor/rules/zod-project-guide.mdc)

Use ES modules for packages by setting "type": "module" in package.json

Files:

• package.json

🧠 Learnings (2)

📚 Learning: 2025-10-21T17:24:39.708Z

Learnt from: CR
PR: colinhacks/zod#0
File: CLAUDE.md:0-0
Timestamp: 2025-10-21T17:24:39.708Z
Learning: Applies to packages/zod/package.json : Provide the zod/source export condition pointing to TypeScript source for development

Applied to files:

• package.json

📚 Learning: 2025-10-21T17:26:08.288Z

Learnt from: CR
PR: colinhacks/zod#0
File: .cursor/rules/testing-guidelines.mdc:0-0
Timestamp: 2025-10-21T17:26:08.288Z
Learning: Applies to packages/zod/src/{v4/classic/tests,v4/core/tests,v3/tests}/**/*.test.ts : Import Zod in tests as `import * as z from "zod/v4"`

Applied to files:

• package.json

🔇 Additional comments (1)

package.json (1)

46-46: Straightforward devDependency version bump—just verify the build/tests are green.

The TypeScript version constraint looks good (no trailing commas, proper format). The tilde range will allow patch and minor updates within 5.9.x, which is solid for a stable release.

Since you're jumping from 5.5.4 to 5.9.3, there could be compiler behavior changes or new strictness checks. As long as the test suite and type checking pass cleanly with the new version, you're all set.

Can you confirm that the full test suite and TypeScript type-checking (tsc --noEmit or equivalent) pass with TypeScript 5.9.3? This ensures the codebase remains fully compatible across the minor version jump.

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