> For the complete documentation index, see [llms.txt](https://senselab.gitbook.io/senselab-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://senselab.gitbook.io/senselab-docs/vendor/symfony/uid/changelog.md).

# CHANGELOG

## 7.3

* Add component-specific exception hierarchy

## 7.2

* Make `AbstractUid` implement `Ds\Hashable` if available
* Add support for binary, base-32 and base-58 representations in `Uuid::isValid()`
* Add the `Uuid::FORMAT_RFC_9562` constant to validate UUIDs in the RFC 9562 format

## 7.1

* Add `UuidV1::toV6()`, `UuidV1::toV7()` and `UuidV6::toV7()`
* Add `AbstractUid::toString()`

## 6.2

* Add `UuidV7` and `UuidV8`
* Add `TimeBasedUidInterface` to describe UIDs that embed a timestamp
* Add `MaxUuid` and `MaxUlid`

## 5.4

* Add `NilUlid`

## 5.3

* The component is not marked as `@experimental` anymore
* Add `AbstractUid::fromBinary()`, `AbstractUid::fromBase58()`, `AbstractUid::fromBase32()` and `AbstractUid::fromRfc4122()`
* \[BC BREAK] Replace `UuidV1::getTime()`, `UuidV6::getTime()` and `Ulid::getTime()` by `UuidV1::getDateTime()`, `UuidV6::getDateTime()` and `Ulid::getDateTime()`
* Add `Uuid::NAMESPACE_*` constants from RFC4122
* Add `UlidFactory`, `UuidFactory`, `RandomBasedUuidFactory`, `TimeBasedUuidFactory` and `NameBasedUuidFactory`
* Add commands to generate and inspect UUIDs and ULIDs

## 5.2.0

* made UUIDv6 always return truly random node fields to prevent leaking the MAC of the host

## 5.1.0

* added support for UUID
* added support for ULID
* added the component


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