uuid breaking changes

14.0.0

4 breaking changes, first published April 19, 2026.

• Removed
  The package no longer supports Node.js 18. Users on Node 18 must upgrade to Node 20 or later before using this version. github.com
• Behavior changed
  The package now expects the crypto global to be available everywhere instead of relying on a fallback. Users need Node.js 20 or later. github.com
• Signature changed parse
  Was function parse(uuid: string): Uint8Array; now function parse(uuid: string): NonSharedArrayBuffer. npmjs.com
• Signature changed v1ToV6
  Was function v1ToV6(uuid: Uint8Array): Uint8Array; now function v1ToV6(uuid: Uint8Array): NonSharedArrayBuffer. npmjs.com

13.0.0

1 breaking change, first published September 8, 2025.

• Configuration changed
  The package now resolves its browser exports by default. Check that bundlers and runtimes still load the build you expect, and import the Node build explicitly if you need it. github.com

12.0.0

3 breaking changes, first published September 5, 2025.

• Removed
  The package no longer ships CommonJS builds. Code that calls require('uuid') must switch to ESM import syntax. github.com
• Removed
  The package no longer supports Node.js 16. Users on Node.js 16 must upgrade their Node.js version or stay on uuid 11. github.com
• Behavior changed
  The project moved to TypeScript 5.2, which may affect projects that rely on older TypeScript typings or tooling. github.com

11.1.0

7 breaking changes, first published February 19, 2025.

• Signature changed UUIDTypes
  Was type UUIDTypes = string | Uint8Array; now type UUIDTypes<TBuf extends Uint8Array = Uint8Array> = string | TBuf. npmjs.com
• Signature changed v1
  Was function v1(options: Version1Options | undefined, buf: Uint8Array, offset?: number): Uint8Array; now function v1<Buf extends Uint8Array = Uint8Array>(options: Version1Options | undefined, buf: Buf, offset?: number): Buf. npmjs.com
• Signature changed v3
  Was function v3(value: string | Uint8Array, namespace: UUIDTypes, buf: Uint8Array, offset?: number): Uint8Array; now function v3<TBuf extends Uint8Array = Uint8Array>(value: string | Uint8Array, namespace: UUIDTypes, buf: TBuf, offset?... npmjs.com
• Signature changed v4
  Was function v4(options: Version4Options | undefined, buf: Uint8Array, offset?: number): Uint8Array; now function v4<TBuf extends Uint8Array = Uint8Array>(options: Version4Options | undefined, buf: TBuf, offset?: number): TBuf. npmjs.com
• Signature changed v5
  Was function v5(value: string | Uint8Array, namespace: UUIDTypes, buf: Uint8Array, offset?: number): Uint8Array; now function v5<TBuf extends Uint8Array = Uint8Array>(value: string | Uint8Array, namespace: UUIDTypes, buf: TBuf, offset?... npmjs.com
• Signature changed v6
  Was function v6(options: Version6Options | undefined, buf: Uint8Array, offset?: number): Uint8Array; now function v6<TBuf extends Uint8Array = Uint8Array>(options: Version6Options | undefined, buf: TBuf, offset?: number): TBuf. npmjs.com
• Signature changed v7
  Was function v7(options: Version7Options | undefined, buf: Uint8Array, offset?: number): Uint8Array; now function v7<TBuf extends Uint8Array = Uint8Array>(options: Version7Options | undefined, buf: TBuf, offset?: number): TBuf. npmjs.com

11.0.5

1 breaking change, first published January 9, 2025.

• Signature changed parse
  Was function parse(uuid: string): Uint8Array<ArrayBuffer>; now function parse(uuid: string): Uint8Array. npmjs.com

11.0.4

1 breaking change, first published January 5, 2025.

• Signature changed parse
  Was function parse(uuid: string): Uint8Array; now function parse(uuid: string): Uint8Array<ArrayBuffer>. npmjs.com

Check your code

These are the changes. To see which of them reach your code, scan a public repository, or have your coding agent call check_code with your manifest or lockfile over MCP. The API reads every change in every version, not only the newest. On Team and up, a fix pull request opens for the changes that reach a connected repository. Nothing merges or deploys.