diff --git a/UPGRADE-3.0.md b/UPGRADE-3.0.md
new file mode 100644
index 000000000..3793a144e
--- /dev/null
+++ b/UPGRADE-3.0.md
@@ -0,0 +1,2 @@
+The upgrade path is located in our docs. Please have a look at 
+[here](https://patchlevel.github.io/event-sourcing-docs/3.0/UPGRADE-3.0/).
diff --git a/docs/mkdocs.yml b/docs/mkdocs.yml
index 71c1120e5..914584c11 100644
--- a/docs/mkdocs.yml
+++ b/docs/mkdocs.yml
@@ -66,7 +66,7 @@ markdown_extensions:
         - docs/includes/links.md
   - admonition
   - pymdownx.emoji:
-      emoji_index: !!python/name:materialx.emoji.twemoji
+      emoji_index: !!python/name:material.extensions.emoji.twemoji
       emoji_generator: !!python/name:materialx.emoji.to_svg
   - def_list
   - pymdownx.tasklist:
@@ -99,6 +99,7 @@ nav:
     - Time / Clock: clock.md
     - Testing: testing.md
     - CLI: cli.md
+  - Upgrade from 2.x: UPGRADE-3.0.md
   - Links:
     - Symfony Bundle: https://patchlevel.github.io/event-sourcing-bundle-docs/latest/
     - Admin Bundle: https://github.com/patchlevel/event-sourcing-admin-bundle
diff --git a/docs/pages/UPGRADE-3.0.md b/docs/pages/UPGRADE-3.0.md
new file mode 100644
index 000000000..b84e33465
--- /dev/null
+++ b/docs/pages/UPGRADE-3.0.md
@@ -0,0 +1,617 @@
+# Upgrade from v2 to v3
+
+We are only providing here the most important changes in detail. For the full BC-Break list go to
+the [full BC-Break list](#full-bc-break-list)
+
+## Detailed change list
+
+### Outsourced packages
+
+These packages lived in this library before and are now outsourced to be more flexible in releasing them on their own.
+This can be done because the domain of this packages are not bound to event sourcing itself and instead provide
+functionality which can be used in other projects as well.
+
+1. The `Worker` is now an extra package [patchlevel/worker](https://github.com/patchlevel/worker).
+2. The `Hydrator` is now an extra package [patchlevel/hydrator](https://github.com/patchlevel/hydrator).
+
+### New packages
+
+We will also introduce [a new bundle](https://github.com/patchlevel/event-sourcing-admin-bundle) coming with version 3.
+This bundle aims to create an even better developer experience by providing a nice view of all the aspects of the event
+source application.
+
+### Aggregates
+
+#### Aggregate Root
+
+The `AggregateRoot` base class is now an interface. This enables users to create their own implementation and to be a
+little more decoupled from our library. We are still providing implementations for an AggregateRoot which can be used
+by using a trait. Right now there are two implementations available `AggregateRootBehaviour` and
+`AggregateRootAttributeBehaviour`. And for convinience there is also a new abstract class which you can extend from
+`BasicAggregateRoot` with this class the upgrade should work seemless. Under the hood it is implementing the new
+interface and using the `AggregateRootAttributeBehaviour`.
+
+Before:
+
+```php
+use Patchlevel\EventSourcing\Aggregate\AggregateRoot;
+use Patchlevel\EventSourcing\Attribute\Aggregate;
+
+#[Aggregate('profile')]
+final class Profile extends AggregateRoot
+{
+    // ...
+}
+```
+After (Using new basic class):
+
+```php
+use Patchlevel\EventSourcing\Aggregate\BasicAggregateRoot;
+use Patchlevel\EventSourcing\Attribute\Aggregate;
+
+#[Aggregate('profile')]
+final class Profile extends BasicAggregateRoot
+{
+    // ...
+}
+```
+After (Using interface and trait):
+
+```php
+use Patchlevel\EventSourcing\Aggregate\AggregateRootAttributeBehaviour;
+use Patchlevel\EventSourcing\Attribute\Aggregate;
+
+#[Aggregate('profile')]
+final class Profile implements AggregateRoot
+{
+    use AggregateRootAttributeBehaviour;
+    // ...
+}
+```
+#### Aggregate Root ID
+
+We introduced the `#[Id]` Attribute which is used to mark the aggregate root id. This is again a step for more
+decoupling and enables you to freely design your Aggregates API. The implementation of `AggregateRoot::aggregateRootId`
+is not needed anymore.
+
+The aggregate root id now needs to implement the `AggregateRootId` interface instead of just being a string. This
+enabled us to have more types safety internally. Regarding that we provide a `Uuid` implementation which is using
+`ramsey/uuid` under the hood and a `CustomId` implementation which is expecting a `string` which could be used if you
+are not using uuids. You can also provide your own implementation and use that.
+
+Before:
+
+```php
+use Patchlevel\EventSourcing\Aggregate\AggregateRoot;
+use Patchlevel\EventSourcing\Attribute\Aggregate;
+
+#[Aggregate('profile')]
+final class Profile extends AggregateRoot
+{
+    private ProfileId $id;
+
+    public function aggregateRootId(): string
+    {
+        return $this->id->toString();
+    }
+}
+
+final class ProfileId
+{
+    private function __construct(private string $id)
+    {
+    }
+
+    public static function fromString(string $id): self
+    {
+        return new self($id);
+    }
+
+    public function toString(): string
+    {
+        return $this->id;
+    }
+}
+```
+After:
+
+```php
+use Patchlevel\EventSourcing\Aggregate\AggregateRootId;
+use Patchlevel\EventSourcing\Aggregate\BasicAggregateRoot;
+use Patchlevel\EventSourcing\Attribute\Aggregate;
+use Patchlevel\EventSourcing\Attribute\Id;
+
+#[Aggregate('profile')]
+final class Profile extends BasicAggregateRoot
+{
+    #[Id]
+    private ProfileId $id;
+}
+
+final class ProfileId implements AggregateRootId
+{
+    private function __construct(private string $id)
+    {
+    }
+
+    public static function fromString(string $id): self
+    {
+        return new self($id);
+    }
+
+    public function toString(): string
+    {
+        return $this->id;
+    }
+}
+```
+### Events
+
+#### Normalizer
+
+The Attribute `#[Normalize]` was removed, use the Normalizer itself instead e.g. `#[IdNormalizer]`. Most of the
+Normalizers are now located in [patchlevel/hydrator](https://github.com/patchlevel/hydrator).
+Your own normalizer needs to add the `#[Attribute(Attribute::TARGET_PROPERTY)]` attribute to the class.
+
+#### Subscription
+
+In 2.1.0 we introduced the `Projectionist` and after that the continued on working on this system. With 3.0 we are
+delivering alot of more feature to this system and it got a complete overhaul as an renaming. It's now called
+`Subscription`. With this we are pushing our event based system mostly complete asynchronous. We are still offering a
+"sync mode" mostly for testing purposes. For more information about this have a look in our
+[docs](https://patchlevel.github.io/event-sourcing-docs/3.0/subscription/).
+
+#### EventBus
+
+We made the EventBus now completely optional but we still provide a default implementation and also a PSR-14 Adapter.
+Also the Symfony Messenger implementation was moved to the [bundle](https://github.com/patchlevel/event-sourcing-bundle).
+
+We encourage to use our Subscription system for most of the use cases.
+
+#### Outbox
+
+Our outbox implementation relied on the eventbus and was a solution to the eventual consistency problem. We think that
+we have now a better solution for that with our Subscription feature. If you still want an outbox table because you have
+internally process running on this table then your can replicate the behaviour with an `#[Projector]`.
+
+```php
+use Patchlevel\EventSourcing\Attribute\Processor;
+use Patchlevel\EventSourcing\Attribute\Subscribe;
+use Patchlevel\EventSourcing\EventBus\Message;
+
+#[Processor('outbox')]
+class OutboxProcessor
+{
+    public function __construct(
+        private readonly EventBus $eventBus,
+    ) {
+    }
+
+    #[Subscribe('*')]
+    public function publish(Message $message): void
+    {
+        $this->eventBus->dispatch($message);
+    }
+}
+```
+#### WatchServer
+
+The `WatchServer` is removed, but you can still watch which events where published via the `WatchCommand` as before. It
+is now internally using the `Subscription` systems to deliver this feature.
+
+### Store
+
+#### Multi-Table Store
+
+We removed the `MultiTableStore` without any replacement. We did this because it does not bring any benefit for the user
+besides some more confidence due to be a little more similar to the "standard" ORM based databases. For the migration
+please have a look
+[here to migrate from the MultiTableStore to the SingleTableStore](https://patchlevel.github.io/event-sourcing-docs/2.3/migrate-multi-table-store-to-single-table-store/).
+For more convenience and overview we will provide [a bundle](https://github.com/patchlevel/event-sourcing-admin-bundle)
+which will visualize all aspects of the event sourced application.
+
+#### Misc
+
+`TransactionalStore` was removed and got merged with `Store`. So now every `Store` needs a transactional capability.
+`SplitEventstreamStore` was removed and is now part of the internal logic of the `Store`.
+
+### Pipeline
+
+The `Pipeline` was also removed in favor of the `Subscription` system. You can achieve the same behaviour with an
+`Projector` using the `Middlewares` which are now called `MessageTranslators`.
+
+```php
+use Patchlevel\EventSourcing\Attribute\Processor;
+use Patchlevel\EventSourcing\Attribute\Subscribe;
+use Patchlevel\EventSourcing\EventBus\Message;
+use Patchlevel\EventSourcing\Message\Translator\Translator;
+use Patchlevel\EventSourcing\Store\Store;
+
+#[Processor('pipeline')]
+class PipelineProcessor
+{
+    public function __construct(
+        private readonly Store $store, // new eventstore
+        private readonly Translator $translator,
+    ) {
+    }
+
+    #[Subscribe('*')]
+    public function publish(Message $message): void
+    {
+        $messages = ($this->translator)($message);
+
+        $this->store->save(...$messages);
+    }
+}
+```
+### Message
+
+The `Message` class was moved into an own namespace and some changes where made to decouple it from the EventBus.
+
+#### Headers
+
+We changed the interface for the Headers. Instead of just passing a pair of key value into an array we now accept
+classes for that case. This classes can be marked as Headers with an Attribute `#[Header]`.
+
+Before:
+
+```php
+use Patchlevel\EventSourcing\Message\Message;
+
+$message = Message::create($event);
+$message = $message->customHeader('key', 'value');
+```
+After:
+
+```php
+use Patchlevel\EventSourcing\Attribute\Header;
+use Patchlevel\EventSourcing\Message\Message;
+
+$message = Message::create($event);
+$message = $message->header(new CustomHeader('value'));
+
+#[Header('key')]
+class CustomHeader
+{
+    public function __construct(
+        public readonly string $value,
+    ) {
+    }
+}
+```
+### Schema
+
+Renamed `*SchemaConfigurator` to `*DoctrineSchemaConfigurator`
+
+### Projection & Projectionist
+
+The `Projectionist` system was overhauled and renamed to `Subscription`. Also, it is now the  default for creating
+`Projections` and `Processors`.
+
+Some Attributes where renamed:
+
+* `#[Handle]` was renamed to `#[Subscribe]`
+* `#[Create]` was renamed to `#[Setup]`
+* `#[Drop]` was renamed to `#[Teardown]`
+
+`VersionedProjector` with the method `targetProjection` where replaced by the Attribute `#[Projector]`. The version is
+now part of the name, so if you want to create a new projection version you will need to update the name from e.g.
+`#[Projector('projection.user_registered']` to `#[Projector('projection.user_registered_1']`.
+
+The logic of the method `Projectionist::boot()` was split up into 2 methods. These are `Projectionist::setup()` and
+`Projectionist::boot()`.
+
+Some classes where also renamed:
+
+* `DefaultProjectionist` was renamed to `DefaultSubscriptionEngine`
+* `DoctrineStore` was renamed to `DoctrineSubscriptionStore`
+* `ProjectorRepository` was renamed to `MetadataSubscriberAccessorRepository`
+
+And also the CLI commands where renamed accordingly:
+
+* `event-sourcing:projectionist:boot` was renamed to `event-sourcing:subscription:boot`
+* `event-sourcing:projectionist:run` was renamed to `event-sourcing:subscription:run`
+* `event-sourcing:projectionist:pause` was renamed to `event-sourcing:subscription:pause`
+* `event-sourcing:projectionist:reactivate` was renamed to `event-sourcing:subscription:reactivate`
+* `event-sourcing:projectionist:remove` was renamed to `event-sourcing:subscription:remove`
+* `event-sourcing:projectionist:status` was renamed to `event-sourcing:subscription:status`
+* `event-sourcing:projectionist:teardown` was renamed to `event-sourcing:subscription:teardown`
+
+And now there is one new cli command to reflect the new `setup` method: `event-sourcing:subscription:setup`
+
+### Attributes
+
+All Attributes are now using `public readonly` properties instead of using methods to retrieve the data.
+
+Before:
+
+```php
+#[Attribute(Attribute::TARGET_CLASS)]
+final class Snapshot
+{
+    public function __construct(
+        private string $name,
+        private int|null $batch = null,
+        private string|null $version = null,
+    ) {
+    }
+
+    public function name(): string
+    {
+        return $this->name;
+    }
+
+    public function batch(): int|null
+    {
+        return $this->batch;
+    }
+
+    public function version(): string|null
+    {
+        return $this->version;
+    }
+}
+```
+After:
+
+```php
+#[Attribute(Attribute::TARGET_CLASS)]
+final class Snapshot
+{
+    public function __construct(
+        public readonly string $name,
+        public readonly int|null $batch = null,
+        public readonly string|null $version = null,
+    ) {
+    }
+}
+```
+### Clock
+
+Our own interface was removed, we are using the PSR-20 interface instead.
+
+## Full BC-Break list
+
+# Added
+
+- [BC] Method count() was added to interface Patchlevel\EventSourcing\Store\Store
+- [BC] Method transactional() was added to interface Patchlevel\EventSourcing\Store\Store
+
+# Changed
+
+- [BC] Class Patchlevel\EventSourcing\Aggregate\AggregateRoot became an interface
+- [BC] The return type of Patchlevel\EventSourcing\Aggregate\AggregateRoot#aggregateRootId() changed from string to the non-covariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The return type of Patchlevel\EventSourcing\Aggregate\AggregateRoot#aggregateRootId() changed from string to Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] Method releaseEvents() of class Patchlevel\EventSourcing\Aggregate\AggregateRoot changed from concrete to abstract
+- [BC] Method createFromEvents() of class Patchlevel\EventSourcing\Aggregate\AggregateRoot changed from concrete to abstract
+- [BC] The parameter $events of Patchlevel\EventSourcing\Aggregate\AggregateRoot::createFromEvents() changed from array to iterable
+- [BC] Method playhead() of class Patchlevel\EventSourcing\Aggregate\AggregateRoot changed from concrete to abstract
+- [BC] The number of required arguments for Exception#__construct() increased from 0 to 1
+- [BC] The parameter $applyMethods of Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#__construct() changed from array to a non-contravariant string
+- [BC] The parameter $properties of Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#__construct() changed from array to a non-contravariant string
+- [BC] The parameter $suppressAll of Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#__construct() changed from bool to a non-contravariant array
+- [BC] The parameter $snapshotStore of Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#__construct() changed from string|null to a non-contravariant bool
+- [BC] The parameter $snapshotBatch of Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#__construct() changed from int|null to a non-contravariant Patchlevel\EventSourcing\Metadata\AggregateRoot\Snapshot|null
+- [BC] Default parameter value for parameter $properties of Patchlevel\EventSourcing\Metadata\Event\EventMetadata#__construct() changed from array (
+  ) to false
+- [BC] The parameter $properties of Patchlevel\EventSourcing\Metadata\Event\EventMetadata#__construct() changed from array to a non-contravariant bool
+- [BC] The number of required arguments for Exception#__construct() increased from 0 to 1
+- [BC] The parameter $aggregateId of Patchlevel\EventSourcing\Repository\SnapshotRebuildFailed#__construct() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $eventBus of Patchlevel\EventSourcing\Repository\DefaultRepository#__construct() changed from Patchlevel\EventSourcing\EventBus\EventBus to a non-contravariant Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata
+- [BC] The parameter $aggregateClass of Patchlevel\EventSourcing\Repository\DefaultRepository#__construct() changed from string to a non-contravariant Patchlevel\EventSourcing\EventBus\EventBus|null
+- [BC] The parameter $messageDecorator of Patchlevel\EventSourcing\Repository\DefaultRepository#__construct() changed from Patchlevel\EventSourcing\EventBus\Decorator\MessageDecorator|null to a non-contravariant Patchlevel\EventSourcing\Repository\MessageDecorator\MessageDecorator|null
+- [BC] The parameter $logger of Patchlevel\EventSourcing\Repository\DefaultRepository#__construct() changed from Psr\Log\LoggerInterface|null to a non-contravariant Psr\Clock\ClockInterface|null
+- [BC] The parameter $id of Patchlevel\EventSourcing\Repository\DefaultRepository#load() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Repository\DefaultRepository#has() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Repository\AggregateNotFound#__construct() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Repository\Repository#load() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Repository\Repository#load() changed from string to Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Repository\Repository#has() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Repository\Repository#has() changed from string to Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $messageDecorator of Patchlevel\EventSourcing\Repository\DefaultRepositoryManager#__construct() changed from Patchlevel\EventSourcing\EventBus\Decorator\MessageDecorator|null to a non-contravariant Patchlevel\EventSourcing\Repository\MessageDecorator\MessageDecorator|null
+- [BC] The parameter $logger of Patchlevel\EventSourcing\Repository\DefaultRepositoryManager#__construct() changed from Psr\Log\LoggerInterface|null to a non-contravariant Psr\Clock\ClockInterface|null
+- [BC] The parameter $aggregateId of Patchlevel\EventSourcing\Repository\PlayheadMismatch#__construct() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] Default parameter value for parameter $fromPlayhead of Patchlevel\EventSourcing\Store\Store#load() changed from 0 to NULL
+- [BC] The return type of Patchlevel\EventSourcing\Store\Store#load() changed from array to the non-covariant Patchlevel\EventSourcing\Store\Stream
+- [BC] The return type of Patchlevel\EventSourcing\Store\Store#load() changed from array to Patchlevel\EventSourcing\Store\Stream
+- [BC] The parameter $aggregate of Patchlevel\EventSourcing\Store\Store#load() changed from string to a non-contravariant Patchlevel\EventSourcing\Store\Criteria\Criteria|null
+- [BC] The parameter $id of Patchlevel\EventSourcing\Store\Store#load() changed from string to a non-contravariant int|null
+- [BC] The parameter $aggregate of Patchlevel\EventSourcing\Store\Store#load() changed from string to Patchlevel\EventSourcing\Store\Criteria\Criteria|null
+- [BC] The parameter $id of Patchlevel\EventSourcing\Store\Store#load() changed from string to int|null
+- [BC] The parameter $fromPlayhead of Patchlevel\EventSourcing\Store\Store#load() changed from int to int|null
+- [BC] Parameter 0 of Patchlevel\EventSourcing\Store\Store#load() changed name from aggregate to criteria
+- [BC] Parameter 1 of Patchlevel\EventSourcing\Store\Store#load() changed name from id to limit
+- [BC] Parameter 2 of Patchlevel\EventSourcing\Store\Store#load() changed name from fromPlayhead to offset
+- [BC] The parameter $messages of Patchlevel\EventSourcing\Store\Store#save() changed from Patchlevel\EventSourcing\EventBus\Message to a non-contravariant Patchlevel\EventSourcing\Message\Message
+- [BC] The parameter $messages of Patchlevel\EventSourcing\Store\Store#save() changed from Patchlevel\EventSourcing\EventBus\Message to Patchlevel\EventSourcing\Message\Message
+- [BC] The parameter $schemaConfigurator of Patchlevel\EventSourcing\Schema\DoctrineSchemaSubscriber#__construct() changed from Patchlevel\EventSourcing\Schema\SchemaConfigurator to a non-contravariant Patchlevel\EventSourcing\Schema\DoctrineSchemaConfigurator
+- [BC] The parameter $schemaConfigurator of Patchlevel\EventSourcing\Schema\DoctrineSchemaDirector#__construct() changed from Patchlevel\EventSourcing\Schema\SchemaConfigurator to a non-contravariant Patchlevel\EventSourcing\Schema\DoctrineSchemaConfigurator
+- [BC] The number of required arguments for Patchlevel\EventSourcing\EventBus\DefaultEventBus#__construct() increased from 0 to 1
+- [BC] The parameter $listeners of Patchlevel\EventSourcing\EventBus\DefaultEventBus#__construct() changed from array to a non-contravariant Patchlevel\EventSourcing\EventBus\Consumer
+- [BC] The parameter $messages of Patchlevel\EventSourcing\EventBus\DefaultEventBus#dispatch() changed from Patchlevel\EventSourcing\EventBus\Message to a non-contravariant Patchlevel\EventSourcing\Message\Message
+- [BC] The parameter $messages of Patchlevel\EventSourcing\EventBus\EventBus#dispatch() changed from Patchlevel\EventSourcing\EventBus\Message to a non-contravariant Patchlevel\EventSourcing\Message\Message
+- [BC] The parameter $messages of Patchlevel\EventSourcing\EventBus\EventBus#dispatch() changed from Patchlevel\EventSourcing\EventBus\Message to Patchlevel\EventSourcing\Message\Message
+- [BC] The parameter $hydrator of Patchlevel\EventSourcing\Serializer\DefaultEventSerializer#__construct() changed from Patchlevel\EventSourcing\Serializer\Hydrator\EventHydrator to a non-contravariant Patchlevel\Hydrator\Hydrator
+- [BC] The parameter $store of Patchlevel\EventSourcing\Console\Command\DatabaseCreateCommand#__construct() changed from Patchlevel\EventSourcing\Store\Store to a non-contravariant Doctrine\DBAL\Connection
+- [BC] The number of required arguments for Patchlevel\EventSourcing\Console\Command\WatchCommand#__construct() increased from 2 to 3
+- [BC] The parameter $server of Patchlevel\EventSourcing\Console\Command\WatchCommand#__construct() changed from Patchlevel\EventSourcing\WatchServer\WatchServer to a non-contravariant Patchlevel\EventSourcing\Store\Store
+- [BC] The parameter $aggregateRootRegistry of Patchlevel\EventSourcing\Console\Command\ShowCommand#__construct() changed from Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootRegistry to a non-contravariant Patchlevel\EventSourcing\Message\Serializer\HeadersSerializer
+- [BC] The parameter $store of Patchlevel\EventSourcing\Console\Command\SchemaDropCommand#__construct() changed from Patchlevel\EventSourcing\Store\Store to a non-contravariant Patchlevel\EventSourcing\Schema\SchemaDirector
+- [BC] The parameter $store of Patchlevel\EventSourcing\Console\Command\SchemaUpdateCommand#__construct() changed from Patchlevel\EventSourcing\Store\Store to a non-contravariant Patchlevel\EventSourcing\Schema\SchemaDirector
+- [BC] The parameter $store of Patchlevel\EventSourcing\Console\Command\SchemaCreateCommand#__construct() changed from Patchlevel\EventSourcing\Store\Store to a non-contravariant Patchlevel\EventSourcing\Schema\SchemaDirector
+- [BC] The parameter $store of Patchlevel\EventSourcing\Console\Command\DatabaseDropCommand#__construct() changed from Patchlevel\EventSourcing\Store\Store to a non-contravariant Doctrine\DBAL\Connection
+- [BC] The number of required arguments for Patchlevel\EventSourcing\Console\OutputStyle#message() increased from 2 to 3
+- [BC] The parameter $message of Patchlevel\EventSourcing\Console\OutputStyle#message() changed from Patchlevel\EventSourcing\EventBus\Message to a non-contravariant Patchlevel\EventSourcing\Message\Serializer\HeadersSerializer
+- [BC] The parameter $hydrator of Patchlevel\EventSourcing\Snapshot\DefaultSnapshotStore#__construct() changed from Patchlevel\EventSourcing\Serializer\Hydrator\AggregateRootHydrator|null to a non-contravariant Patchlevel\Hydrator\Hydrator|null
+- [BC] The parameter $id of Patchlevel\EventSourcing\Snapshot\DefaultSnapshotStore#load() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Snapshot\SnapshotStore#load() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Snapshot\SnapshotStore#load() changed from string to Patchlevel\EventSourcing\Aggregate\AggregateRootId
+- [BC] The parameter $id of Patchlevel\EventSourcing\Snapshot\SnapshotNotFound#__construct() changed from string to a non-contravariant Patchlevel\EventSourcing\Aggregate\AggregateRootId
+
+# Removed
+
+- [BC] Class Patchlevel\EventSourcing\WatchServer\SendingFailed has been deleted
+- [BC] Class Patchlevel\EventSourcing\WatchServer\SocketWatchServer has been deleted
+- [BC] Class Patchlevel\EventSourcing\WatchServer\WatchServer has been deleted
+- [BC] Class Patchlevel\EventSourcing\WatchServer\WatchListener has been deleted
+- [BC] Class Patchlevel\EventSourcing\WatchServer\MessageSerializer has been deleted
+- [BC] Class Patchlevel\EventSourcing\WatchServer\SocketWatchServerClient has been deleted
+- [BC] Class Patchlevel\EventSourcing\WatchServer\WatchServerClient has been deleted
+- [BC] Class Patchlevel\EventSourcing\WatchServer\PhpNativeMessageSerializer has been deleted
+- [BC] Method Patchlevel\EventSourcing\Aggregate\AggregateRoot#__construct() was removed
+- [BC] Method Patchlevel\EventSourcing\Aggregate\AggregateRoot#apply() was removed
+- [BC] Method Patchlevel\EventSourcing\Aggregate\AggregateRoot#recordThat() was removed
+- [BC] Method Patchlevel\EventSourcing\Aggregate\AggregateRoot::metadata() was removed
+- [BC] Method Patchlevel\EventSourcing\Aggregate\AggregateRoot::setMetadataFactory() was removed
+- [BC] Class Patchlevel\EventSourcing\Metadata\Projection\DuplicateCreateMethod has been deleted
+- [BC] Class Patchlevel\EventSourcing\Metadata\Projection\DuplicateDropMethod has been deleted
+- [BC] Class Patchlevel\EventSourcing\Metadata\Projection\DuplicateHandleMethod has been deleted
+- [BC] Class Patchlevel\EventSourcing\Metadata\Projection\ProjectionMetadataFactory has been deleted
+- [BC] Class Patchlevel\EventSourcing\Metadata\Projection\AttributeProjectionMetadataFactory has been deleted
+- [BC] Class Patchlevel\EventSourcing\Metadata\Projection\ProjectionMetadata has been deleted
+- [BC] Class Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootPropertyMetadata has been deleted
+- [BC] Property Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#$properties was removed
+- [BC] Property Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#$snapshotStore was removed
+- [BC] Property Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#$snapshotBatch was removed
+- [BC] Property Patchlevel\EventSourcing\Metadata\AggregateRoot\AggregateRootMetadata#$snapshotVersion was removed
+- [BC] Property Patchlevel\EventSourcing\Metadata\Event\EventMetadata#$properties was removed
+- [BC] Class Patchlevel\EventSourcing\Metadata\Event\EventPropertyMetadata has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Source\Source has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Source\StoreSource has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Source\InMemorySource has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Target\ProjectorTarget has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Target\ProjectorRepositoryTarget has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Target\InMemoryTarget has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Target\ProjectionHandlerTarget has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Target\Target has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Target\StoreTarget has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Target\ProjectionTarget has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Pipeline has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\OnlyArchivedEventMiddleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\FilterEventMiddleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\UntilEventMiddleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\RecalculatePlayheadMiddleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\Middleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\ReplaceEventMiddleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\IncludeEventMiddleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\ExcludeEventMiddleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\ChainMiddleware has been deleted
+- [BC] Class Patchlevel\EventSourcing\Pipeline\Middleware\ExcludeArchivedEventMiddleware has been deleted
+- [BC] Method Patchlevel\EventSourcing\Repository\SnapshotRebuildFailed#aggregateId() was removed
+- [BC] Class Patchlevel\EventSourcing\Repository\InvalidAggregateClass has been deleted
+- [BC] Method Patchlevel\EventSourcing\Store\Store#has() was removed
+- [BC] Class Patchlevel\EventSourcing\Store\PipelineStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Store\StreamableStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Store\CorruptedMetadata has been deleted
+- [BC] Class Patchlevel\EventSourcing\Store\MultiTableStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Store\OutboxStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Store\SplitEventstreamStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Store\SingleTableStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Store\DoctrineStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Store\TransactionStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Clock\Clock has been deleted
+- [BC] These ancestors of Patchlevel\EventSourcing\Clock\FrozenClock have been removed: ["Patchlevel\EventSourcing\Clock\Clock"]
+- [BC] These ancestors of Patchlevel\EventSourcing\Clock\SystemClock have been removed: ["Patchlevel\EventSourcing\Clock\Clock"]
+- [BC] Class Patchlevel\EventSourcing\Schema\ChainSchemaConfigurator has been deleted
+- [BC] Class Patchlevel\EventSourcing\Schema\SchemaManager has been deleted
+- [BC] Class Patchlevel\EventSourcing\Schema\StoreNotSupported has been deleted
+- [BC] Class Patchlevel\EventSourcing\Schema\DoctrineSchemaManager has been deleted
+- [BC] Class Patchlevel\EventSourcing\Schema\DryRunSchemaManager has been deleted
+- [BC] Class Patchlevel\EventSourcing\Schema\MigrationSchemaProvider has been deleted
+- [BC] Class Patchlevel\EventSourcing\Schema\SchemaConfigurator has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\ProjectionListener has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\ProjectionId has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\Store\InMemoryStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\Store\ProjectionStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\Store\DoctrineStore has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\Projection has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\ProjectionNotFound has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\ProjectionStatus has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\DuplicateProjectionId has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\ProjectionCollection has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projection\ProjectionCriteria has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projector\Projector has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projector\ProjectorHelper has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projector\InMemoryProjectorRepository has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projector\ProjectorRepository has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projector\MetadataProjectorResolver has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projector\ProjectorResolver has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projector\SyncProjectorListener has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\ProjectionHandler has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\MetadataAwareProjectionHandler has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projectionist\ProjectorNotFound has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projectionist\VersionedProjector has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projectionist\Projectionist has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projectionist\RunProjectionistEventBusWrapper has been deleted
+- [BC] Class Patchlevel\EventSourcing\Projection\Projectionist\DefaultProjectionist has been deleted
+- [BC] Method Patchlevel\EventSourcing\Attribute\Snapshot#name() was removed
+- [BC] Method Patchlevel\EventSourcing\Attribute\Snapshot#batch() was removed
+- [BC] Method Patchlevel\EventSourcing\Attribute\Snapshot#version() was removed
+- [BC] Method Patchlevel\EventSourcing\Attribute\Aggregate#name() was removed
+- [BC] Class Patchlevel\EventSourcing\Attribute\NormalizedName has been deleted
+- [BC] Class Patchlevel\EventSourcing\Attribute\Create has been deleted
+- [BC] Class Patchlevel\EventSourcing\Attribute\Normalize has been deleted
+- [BC] Class Patchlevel\EventSourcing\Attribute\Handle has been deleted
+- [BC] Class Patchlevel\EventSourcing\Attribute\Drop has been deleted
+- [BC] Method Patchlevel\EventSourcing\Attribute\Event#name() was removed
+- [BC] Method Patchlevel\EventSourcing\Attribute\SuppressMissingApply#suppressEvents() was removed
+- [BC] Method Patchlevel\EventSourcing\Attribute\SuppressMissingApply#suppressAll() was removed
+- [BC] Method Patchlevel\EventSourcing\Attribute\Apply#eventClass() was removed
+- [BC] Class Patchlevel\EventSourcing\EventBus\SymfonyEventBus has been deleted
+- [BC] Method Patchlevel\EventSourcing\EventBus\DefaultEventBus#addListener() was removed
+- [BC] Class Patchlevel\EventSourcing\EventBus\Decorator\MessageDecorator has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\Decorator\SplitStreamDecorator has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\Decorator\RecordedOnDecorator has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\Decorator\ChainMessageDecorator has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\DuplicateHandleMethod has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\Subscriber has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\Message has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\Listener has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\HeaderNotFound has been deleted
+- [BC] Class Patchlevel\EventSourcing\EventBus\EventBusException has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\MissingPlayhead has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\DenormalizationFailure has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\MetadataAggregateRootHydrator has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\HydratorException has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\TypeMismatch has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\MetadataEventHydrator has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\NormalizationFailure has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\AggregateRootHydrator has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Hydrator\EventHydrator has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Normalizer\DateTimeZoneNormalizer has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Normalizer\Normalizer has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Normalizer\ArrayNormalizer has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Normalizer\DateTimeImmutableNormalizer has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Normalizer\DateTimeNormalizer has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Normalizer\InvalidArgument has been deleted
+- [BC] Class Patchlevel\EventSourcing\Serializer\Normalizer\EnumNormalizer has been deleted
+- [BC] Class Patchlevel\EventSourcing\Outbox\OutboxConsumer has been deleted
+- [BC] Class Patchlevel\EventSourcing\Outbox\StoreOutboxConsumer has been deleted
+- [BC] Class Patchlevel\EventSourcing\Outbox\OutboxEventBus has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionDropCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionistTeardownCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionRebuildCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionistRemoveCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\OutboxInfoCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionistRunCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionistReactivateCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionistBootCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionistStatusCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionistCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\ProjectionCreateCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Command\OutboxConsumeCommand has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Listener\StopWorkerOnMemoryLimitListener has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Listener\StopWorkerOnIterationLimitListener has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Listener\StopWorkerOnTimeLimitListener has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Listener\StopWorkerOnSigtermSignalListener has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\InvalidFormat has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\DefaultWorker has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Worker has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Bytes has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Event\WorkerStartedEvent has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Event\WorkerStoppedEvent has been deleted
+- [BC] Class Patchlevel\EventSourcing\Console\Worker\Event\WorkerRunningEvent has been deleted
+- [BC] Class Patchlevel\EventSourcing\Lock\DoctrineDbalStoreSchemaAdapter has been deleted