[Snyk] Upgrade typescript from 5.8.3 to 5.9.3

[Power-Maverick]

Snyk has created this PR to upgrade typescript from 5.8.3 to 5.9.3.

ℹ️ Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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• The recommended version is 165 versions ahead of your current version.

• The recommended version was released a year ago.

Breaking Change Risk

Notice: This assessment is enhanced by AI.

Release notes

Package name: typescript

• 5.9.3 - 2025-09-30
  

  Note: this tag was recreated to point at the correct commit. The npm package contained the correct content.

  For release notes, check out the release announcement

  • fixed issues query for Typescript 5.9.0 (Beta).
  • fixed issues query for Typescript 5.9.1 (RC).
  • No specific changes for TypeScript 5.9.2 (Stable)
  • fixed issues query for Typescript 5.9.3 (Stable).

  Downloads are available on:

  • npm
• 5.9.2 - 2025-07-31
  

  Note: this tag was recreated to point at the correct commit. The npm package contained the correct content.

  For release notes, check out the release announcement

  • fixed issues query for Typescript 5.9.0 (Beta).
  • fixed issues query for Typescript 5.9.1 (RC).
  • No specific changes for TypeScript 5.9.2 (Stable)

  Downloads are available on:

  • npm
• 5.9.1-rc - 2025-07-24
• 5.9.0-dev.20250731 - 2025-07-31
• 5.9.0-dev.20250730 - 2025-07-30
• 5.9.0-dev.20250729 - 2025-07-29
• 5.9.0-dev.20250728 - 2025-07-28
• 5.9.0-dev.20250727 - 2025-07-27
• 5.9.0-dev.20250726 - 2025-07-26
• 5.9.0-dev.20250725 - 2025-07-25
• 5.9.0-dev.20250724 - 2025-07-24
• 5.9.0-dev.20250723 - 2025-07-23
• 5.9.0-dev.20250722 - 2025-07-22
• 5.9.0-dev.20250721 - 2025-07-21
• 5.9.0-dev.20250720 - 2025-07-20
• 5.9.0-dev.20250719 - 2025-07-19
• 5.9.0-dev.20250718 - 2025-07-18
• 5.9.0-dev.20250717 - 2025-07-17
• 5.9.0-dev.20250716 - 2025-07-16
• 5.9.0-dev.20250715 - 2025-07-15
• 5.9.0-dev.20250714 - 2025-07-14
• 5.9.0-dev.20250713 - 2025-07-13
• 5.9.0-dev.20250712 - 2025-07-12
• 5.9.0-dev.20250711 - 2025-07-11
• 5.9.0-dev.20250710 - 2025-07-10
• 5.9.0-dev.20250709 - 2025-07-09
• 5.9.0-dev.20250708 - 2025-07-08
• 5.9.0-dev.20250707 - 2025-07-07
• 5.9.0-dev.20250706 - 2025-07-06
• 5.9.0-dev.20250705 - 2025-07-05
• 5.9.0-dev.20250704 - 2025-07-04
• 5.9.0-dev.20250703 - 2025-07-03
• 5.9.0-dev.20250702 - 2025-07-02
• 5.9.0-dev.20250701 - 2025-07-01
• 5.9.0-dev.20250630 - 2025-06-30
• 5.9.0-dev.20250629 - 2025-06-29
• 5.9.0-dev.20250628 - 2025-06-28
• 5.9.0-dev.20250627 - 2025-06-27
• 5.9.0-dev.20250626 - 2025-06-26
• 5.9.0-dev.20250625 - 2025-06-25
• 5.9.0-dev.20250624 - 2025-06-24
• 5.9.0-dev.20250623 - 2025-06-23
• 5.9.0-dev.20250622 - 2025-06-22
• 5.9.0-dev.20250621 - 2025-06-21
• 5.9.0-dev.20250620 - 2025-06-20
• 5.9.0-dev.20250619 - 2025-06-19
• 5.9.0-dev.20250618 - 2025-06-18
• 5.9.0-dev.20250617 - 2025-06-17
• 5.9.0-dev.20250616 - 2025-06-16
• 5.9.0-dev.20250615 - 2025-06-15
• 5.9.0-dev.20250614 - 2025-06-14
• 5.9.0-dev.20250613 - 2025-06-13
• 5.9.0-dev.20250612 - 2025-06-12
• 5.9.0-dev.20250611 - 2025-06-11
• 5.9.0-dev.20250610 - 2025-06-10
• 5.9.0-dev.20250609 - 2025-06-09
• 5.9.0-dev.20250608 - 2025-06-08
• 5.9.0-dev.20250607 - 2025-06-07
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• 5.9.0-dev.20250601 - 2025-06-01
• 5.9.0-dev.20250531 - 2025-05-31
• 5.9.0-dev.20250530 - 2025-05-30
• 5.9.0-dev.20250529 - 2025-05-29
• 5.9.0-dev.20250528 - 2025-05-28
• 5.9.0-dev.20250527 - 2025-05-27
• 5.9.0-dev.20250525 - 2025-05-25
• 5.9.0-dev.20250524 - 2025-05-24
• 5.9.0-dev.20250523 - 2025-05-23
• 5.9.0-dev.20250522 - 2025-05-22
• 5.9.0-dev.20250521 - 2025-05-21
• 5.9.0-dev.20250520 - 2025-05-20
• 5.9.0-dev.20250519 - 2025-05-19
• 5.9.0-dev.20250518 - 2025-05-18
• 5.9.0-dev.20250517 - 2025-05-17
• 5.9.0-dev.20250516 - 2025-05-16
• 5.9.0-dev.20250515 - 2025-05-15
• 5.9.0-dev.20250514 - 2025-05-14
• 5.9.0-dev.20250513 - 2025-05-13
• 5.9.0-dev.20250512 - 2025-05-12
• 5.9.0-dev.20250511 - 2025-05-11
• 5.9.0-dev.20250510 - 2025-05-10
• 5.9.0-dev.20250509 - 2025-05-09
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• 5.9.0-dev.20250507 - 2025-05-07
• 5.9.0-dev.20250506 - 2025-05-06
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• 5.9.0-dev.20250503 - 2025-05-03
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• 5.9.0-dev.20250501 - 2025-05-01
• 5.9.0-dev.20250430 - 2025-04-30
• 5.9.0-dev.20250429 - 2025-04-29
• 5.9.0-dev.20250428 - 2025-04-28
• 5.9.0-dev.20250427 - 2025-04-27
• 5.9.0-dev.20250426 - 2025-04-26
• 5.9.0-dev.20250425 - 2025-04-25
• 5.9.0-dev.20250424 - 2025-04-24
• 5.9.0-dev.20250423 - 2025-04-23
• 5.9.0-dev.20250422 - 2025-04-22
• 5.9.0-dev.20250421 - 2025-04-21
• 5.9.0-dev.20250420 - 2025-04-20
• 5.9.0-dev.20250419 - 2025-04-19
• 5.9.0-dev.20250418 - 2025-04-18
• 5.9.0-dev.20250417 - 2025-04-17
• 5.9.0-dev.20250416 - 2025-04-16
• 5.9.0-dev.20250415 - 2025-04-15
• 5.9.0-dev.20250414 - 2025-04-14
• 5.9.0-dev.20250413 - 2025-04-13
• 5.9.0-dev.20250412 - 2025-04-12
• 5.9.0-dev.20250410 - 2025-04-10
• 5.9.0-dev.20250409 - 2025-04-09
• 5.9.0-dev.20250408 - 2025-04-08
• 5.9.0-dev.20250407 - 2025-04-07
• 5.9.0-dev.20250406 - 2025-04-06
• 5.9.0-dev.20250405 - 2025-04-05
• 5.9.0-dev.20250404 - 2025-04-04
• 5.9.0-dev.20250403 - 2025-04-03
• 5.9.0-dev.20250402 - 2025-04-02
• 5.9.0-dev.20250401 - 2025-04-01
• 5.9.0-dev.20250331 - 2025-03-31
• 5.9.0-dev.20250330 - 2025-03-30
• 5.9.0-dev.20250329 - 2025-03-29
• 5.9.0-dev.20250328 - 2025-03-28
• 5.9.0-dev.20250327 - 2025-03-27
• 5.9.0-dev.20250326 - 2025-03-26
• 5.9.0-dev.20250325 - 2025-03-25
• 5.9.0-dev.20250324 - 2025-03-24
• 5.9.0-dev.20250323 - 2025-03-23
• 5.9.0-dev.20250322 - 2025-03-22
• 5.9.0-dev.20250321 - 2025-03-21
• 5.9.0-dev.20250320 - 2025-03-20
• 5.9.0-dev.20250319 - 2025-03-19
• 5.9.0-dev.20250318 - 2025-03-18
• 5.9.0-dev.20250317 - 2025-03-17
• 5.9.0-dev.20250316 - 2025-03-16
• 5.9.0-dev.20250315 - 2025-03-15
• 5.9.0-dev.20250314 - 2025-03-14
• 5.9.0-dev.20250313 - 2025-03-13
• 5.9.0-dev.20250312 - 2025-03-12
• 5.9.0-dev.20250311 - 2025-03-11
• 5.9.0-dev.20250310 - 2025-03-10
• 5.9.0-dev.20250309 - 2025-03-09
• 5.9.0-dev.20250308 - 2025-03-08
• 5.9.0-dev.20250307 - 2025-03-07
• 5.9.0-dev.20250306 - 2025-03-06
• 5.9.0-dev.20250305 - 2025-03-05
• 5.9.0-dev.20250304 - 2025-03-04
• 5.9.0-dev.20250303 - 2025-03-03
• 5.9.0-dev.20250302 - 2025-03-02
• 5.9.0-dev.20250301 - 2025-03-01
• 5.9.0-dev.20250228 - 2025-02-28
• 5.9.0-dev.20250227 - 2025-02-27
• 5.9.0-dev.20250226 - 2025-02-26
• 5.9.0-dev.20250225 - 2025-02-25
• 5.9.0-dev.20250224 - 2025-02-24
• 5.9.0-dev.20250223 - 2025-02-23
• 5.9.0-dev.20250222 - 2025-02-22
• 5.9.0-dev.20250221 - 2025-02-21
• 5.9.0-dev.20250220 - 2025-02-20
• 5.9.0-dev.20250219 - 2025-02-19
• 5.9.0-beta - 2025-07-08
• 5.8.3 - 2025-04-05
  

  Note: this tag was recreated to point at the correct commit. The npm package contained the correct content.

  For release notes, check out the release announcement.

  • fixed issues query for Typescript 5.8.0 (Beta).
  • fixed issues query for Typescript 5.8.1 (RC).
  • fixed issues query for Typescript 5.8.2 (Stable).
  • fixed issues query for Typescript 5.8.3 (Stable).

  Downloads are available on:

  • npm

from typescript GitHub release notes

---

Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• This PR was automatically created by Snyk using the credentials of a real user.

---

Note: You are seeing this because you or someone else with access to this repository has authorized Snyk to open upgrade PRs.

For more information:

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[Power-Maverick]

This minor version upgrade of TypeScript introduces stricter type checking and updates to built-in type definitions, which may result in new compilation errors.

Potential Breaking Changes:

• Stricter Type Inference: To prevent incorrect type variable "leaks" during inference, TypeScript 5.9 has tightened its rules. This may cause new errors in some codebases, which can often be resolved by adding explicit type arguments to generic function calls.
• ArrayBuffer and Buffer Incompatibility: A notable change is that ArrayBuffer is no longer considered a supertype of Node.js's Buffer. This can lead to new type errors where Buffers were previously used.

Recommendation:

• After upgrading, run your project's type-checker (tsc) to identify any new errors.
• For errors related to Buffer, update your @types/node dependency by running npm install @types/node --save-dev.

Source: Announcing TypeScript 5.9

Notice 🤖: This content was augmented using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.

[vercel]

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Project	Deployment	Actions	Updated
docs-web	Ready	Preview	Sep 13, 2026 11:01am UTC

[Copilot]

🟡 Changes recommended

Align the lint toolchain with TypeScript 5.9 support or keep TypeScript below 5.9.

Get a fresh assessment by requesting another Copilot review.

Pull request overview

Upgrades the docs site's TypeScript dependency from 5.8.3 to 5.9.3.

Changes:

• Updates the TypeScript dependency.
• Refreshes the lockfile and dependency metadata.

File summaries

File	Summary
package.json	Raises TypeScript to 5.9.3.
package-lock.json	Locks TypeScript 5.9.3 while retaining an incompatible @typescript-eslint peer range.

Review details

• Files reviewed: 1/2 changed files
• Comments generated: 1
• Review effort level: Lite

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