[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Type](https://evolu.dev/docs/api-reference/common/Type) › UuidVersion

```ts
type UuidVersion = 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8;
```

Defined in: [packages/common/src/Type.ts:10612](https://github.com/evoluhq/evolu/blob/bc4578a260dd15d5bbf94b83765ca05984d194cb/packages/common/src/Type.ts#L10612)

UUID versions defined by [RFC 9562](https://www.rfc-editor.org/rfc/rfc9562).