9.0.0-beta3 (2024-01-18)

Overview of merged pull requests

FEATURE: Consider PHP attributes in proxy method building

Added support for preserving PHP 8 attributes in generated proxy class methods. This feature enables correct argument passing from attributes to proxied methods which allows developers to use attributes instead of annotations in most cases.

  • Resolves: #3075

  • Packages: Flow

FEATURE: Add `FlowInjectCache Attribute / Annotation for property injection <https://github.com/neos/flow-development-collection/pull/3244>`_

In many cases an Objects.yaml is created just to inject caches which can feel a bit cumbersome as one already had specified the cache in Caches.yaml.

To address this the new @Flow\\InjectCache annotation allows to assign a cache frontend of a configured cache directly to a property without having to configure the Objects.yaml at all.


#[Flow\InjectCache(identifier: ‘Flow_Mvc_Routing_Resolve’)] protected VariableFrontend $cache;


  • Packages: Flow

FEATURE: Add more information for object arguments in debugging

For stacktraces in exceptions and logs we now render some representation of content for objects to ease debugging with DTOs.

Specifically we will try to obtain a string representation for such an object by using either in this order:

  • a string cast if __toString() is available

  • json_encode if it is JsonSerializable

  • json_encode on the array of public properties

For readability json_encode will be limited to the first level, also all of those string representations will be cut off after 100 characters.

If any of those options works we will also shorten the className to avoid this output becoming overly long.

Note that we use JSON_PARTIAL_OUTPUT_ON_ERROR to make sure some output is provided. This might lead to partial or weird outputs depending on the object structure, but might still provide pointers for debugging.

  • Fixes: #3165

  • Packages: Flow

9.0 FEATURE: Add `unique flowQuery operation <https://github.com/neos/flow-development-collection/pull/3102>`_

This operation applies array_unique to the current flowQuery context.

While the same could previously achieved via Array.unique() the flow query operation can be placed in an operation chain without extra wrapping.

Review instructions

There is also a node specific implementation of the unique operation in https://github.com/neos/neos-development-collection/pull/4355

I know the php code looks oldish but the style is in line with the other flowQuery operations around.

  • Packages: Eel

FEATURE: Add `getAccessorByPath to NeosUtilityArrays for type safe accessing of array values <https://github.com/neos/flow-development-collection/pull/3149>`_

The array utility allows to create a type safe accessor via Arrays::getAccessorByPath($arrayValue, 'your.path'). The accessor provides the following methods that will either return the requested type or throw a \\UnexpectedValueException.

  • int(): int

  • float(): float

  • number(): int|float

  • string(): string

  • classString(): string - with annotation for class-string

  • array(): array

  • instanceOf(string $className): object - with annotation for dynamic type

  • intOrNull(): ?int

  • floatOrNull(): ?float

  • numberOrNull(): null|int|float

  • stringOrNull(): ?string

  • classStringOrNull(): ?string - with annotation for class-string | null

  • arrayOrNull(): ?array

  • instanceOfOrNull(string $className): ?object - with annotation for dynamic type | null

This will allow to write code that accesses settings via pathes without checking every level for existence still beeing type safe and accessible for static analysis.

This can be used together with settingInjection.

```php public function injectSettings(array $settings): void {

$this->limit = Arrays::getAccessorByPath($settings, ‘limit’)->intOrNull();


Review instructions

It may look inefficient to manually throw TypeErrors that in many cases would be thrown automatically because of the declared return types. However this is not a performance issue as those are never on the happy-path and the created TypeError provides additional informations to help understand and fix problems faster.

  • Packages: Flow Utility.Arrays

FEATURE: Exclude classes from constructor autowiring

Classes can now explicitly be excluded from constructor autowiring through a new setting.

The setting accepts an array of fully qualified class names, each class name being a regular expression. Classes of scope prototype which expect objects to be passed to their constructor are usually considered for autowiring which results in a proxy class being generated.

This option allows to exclude classes from this process. This is useful for classes like data transfer objects, read models, commands, events and value objects which usually don’t rely on dependency injection.

Flow cannot reliably detect weather a prototype class depends on autowiring for constructor arguments or not. Use this option to optimize your application to avoid the small but measurable overhead of proxy generation for those kinds of classes.

Note that if there are other reasons than constructor injection which require a proxy class to be generated, the proxy class will be generated no matter what.

This change partly reverts `#3050 <https://github.com/neos/flow-development-collection/issues/3050>`_because now proxy classes _are_ generated for prototype classes by default. Otherwise a lot of existing Flow applications would not work correctly anymore.

resolves: #3049

  • Packages: Flow

FEATURE: Replace self with static in proxy classes

Factory methods which use code like new self() for creating a new instance are now handled correctly in proxy classes. The compiler automatically replaces “self” keywords with “static” in the rendered proxy class file to make this possible.

This implementation has not been optimized for performance.

  • Resolves: #3059

  • Packages: Flow

FEATURE: Support private constructors in proxy classes

Flow now can correctly build proxy classes for classes with private constructors. Previously, such classes caused errors and proxy class building had to be disabled with the Proxy(false) annotation. Now classes with private constructors can take advantage of setter and property injection and are considered for advices through the AOP framework.

  • Resolves: #3058

  • Packages: Flow

FEATURE: Add support for readonly classes

Flow now respects readonly classes during proxy class building and makes sure that proxy classes are readonly as well.

resolves: #3025

  • Packages: Flow

BUGFIX: Make new object debug output more robust

Unfortunately magic methods are tricky and __toString is no exception, a check if it’s callable can result in true if the magic __call method is implemented but then the results of this call are completely undefined and therefore catching errors and continuing with other options is a good safeguard here.

Noticed this when I had an error in the Mvc\\Arguments implementation which declares __call.

  • Packages: Flow

BUGFIX: Use correct exception class

Fix the use of an exception class that is no longer where it was.

  • Packages: Flow

BUGFIX: Replacement proxy methods rendered again

This fixes a bug introduced in d939e6b8 switching to laminuas-code. A proxy method can replace the full body of an existing method or even be a fully new method, in which case only body will be set in the proxy method. We still want those to be generated. This for example currently breaks the CompileStatic feature, as those methods do not get rendered anymore resulting in worse performance in Production context compared to before.

This fix renders a proxy method also when a body was set for it, but still skips it if neither pre/post nor body is set.

It also enabled CompileStatic in Testing Context so that it is testable and adds a test to make sure it works as intended.

  • Fixes: #3099

  • Packages: Flow

BUGFIX: Remove injected properties before serialization

This fixes a regression introduced recently which resulted in serialization errors if the object to be serialized contained properties which were previously injected.

  • Resolves: #3066

  • Packages: Flow

BUGFIX: Support mixed return type in proxied methods

Flow’s proxy class building now supports mixed return types for methods.

This change merely adds a test which proves that the feature is working. The actual implementation was part of https://github.com/neos/flow-development-collection/issues/3042.

resolves: https://github.com/neos/flow-development-collection/issues/2899

  • Packages: Flow

BUGFIX: Union types in proxy classes

Flow’s proxy class building now supports union types in method signatures.

This change merely adds a test which proves that the feature is working. The actual implementation was part of #3042.

resolves: #2941

  • Packages: Flow

BUGFIX: Create serialization code for transient properties

Due to a recent optimization, Flow was not generating __sleep() methods for classes which are not either entities or were configured with a session scope. This led to errors in classes which were using the @Transient annotation to exclude certain properties from serialization. Therefore, Flow now also generates proxy classes with __sleep() methods if the original class contains such annotations.

  • Resolves: #3062

  • Packages: Flow

BUGFIX: Skip proxy for optional straight values

When a promoted property was an optional straight value, the proxy class builder decided to create a proxy class because it could be a straight value configured in the object configuration via Objects.yaml. Flow now checks the value of the given argument and only triggers proxy class building if the argument is not null. That way, Flow will not build useless proxies for typical read models which expect a mix of objects and straight values in their constructor.

related: #1539 related: #3049

  • Packages: Flow

BUGFIX: Move access to objectAccess of TemplateObjectAccessInterface into getByPath

… as accessors are not used anymore for variable provider within fluid, starting v2.8.0.

Due to the missing accessors the objectAccess of TemplateObjectAccessInterface didn’t get called anymore, so the result of the getByPath method was an object of FusionPathProxy instead of an rendered string.

See: https://github.com/TYPO3/Fluid/compare/2.7.4…2.8.0#diff-`a0aa72aa19d9eb57cdb9a4dcd344c3706d75ae7c <https://github.com/neos/flow-development-collection/commit/a0aa72aa19d9eb57cdb9a4dcd344c3706d75ae7c>`_a408286f91a846e495b3c766L122 https://github.com/TYPO3/Fluid/compare/2.7.4…2.8.0#diff-`a0aa72aa19d9eb57cdb9a4dcd344c3706d75ae7c <https://github.com/neos/flow-development-collection/commit/a0aa72aa19d9eb57cdb9a4dcd344c3706d75ae7c>`_a408286f91a846e495b3c766L341 https://github.com/TYPO3/Fluid/compare/2.7.4…2.8.0#diff-`a0aa72aa19d9eb57cdb9a4dcd344c3706d75ae7c <https://github.com/neos/flow-development-collection/commit/a0aa72aa19d9eb57cdb9a4dcd344c3706d75ae7c>`_a408286f91a846e495b3c766L312

  • Packages: FluidAdaptor

!!! TASK: Introduce `TargetInterface::onPublish callback <https://github.com/neos/flow-development-collection/pull/3229>`_

Currently every implementation of the TargetInterface::publishCollection should declare a second parameter: callable $callback = null which not part of the interface, but used by convention. This pattern causes trouble when using phpstan and also it’s not best practice. To improve this code and preserve the usecase partially the interface now allows to register onPublish callbacks, which should be called when publishCollection is run:

```php interface TargetInterface {

// …

  • @param \Closure(int $iteration): void $callback Function called after each resource publishing


public function onPublish(\Closure $callback): void;


Upgrade instructions

In case you are using the callback, you need to adjust the calling side:

`diff - $fileSystemTarget->publishCollection($staticCollection, $myPublicationCallback); + $fileSystemTarget->onPublish($myPublicationCallback); + $fileSystemTarget->publishCollection($staticCollection); `

Also note that the second parameter $object will not be passed anymore. The callback only contains the $iteration as one and only parameter.

Additionally the method iterate(…) in the ResourceRepository has been removed, replace it by iterating over the result of findAllIterator() directly.

  • Packages: Flow

!!! TASK: Modernized code style in ReflectionService

Code in the reflection service was adjusted to the current code style best practices.

The method arguments in the Reflection Service are now strictly typed. Therefore, third-party code which relied on loose types and passes invalid types, need to be adjusted. Tests in the Flow package were adjusted were necessary.

As part of the clean up, the setStatusCache() method in ReflectionService was fixed which used a wrong order of parameters in its is_callable() call.

Preparation for #2913

  • Packages: Flow

!!! TASK: Require PHP 8.2

The minimum requirement for the Flow Framework, including all packages of its distribution, was raised to PHP 8.2.

  • Packages: Flow Utility.ObjectHandling

TASK: Fix some nullable php doc types

I ran phpstan level 3 once on flow. And it seems we dont specifiy the nullable types correctly, but we document them in the doc string. So i wrote a little helping script that would add the |null php doc annotation to all @param and @return types if we specify or NULL in the message. I carefully reviewed every change and made additionally some manual changes and corrected things. This is completely non breaking as only doc comments are being touched.

This will help for migrating to phpstan level 3.

Upgrade instructions

  • Packages: Flow FluidAdaptor

TASK: Remove deprecated code

  • remove deprecated ProtectedContext::whitelist

  • remove deprecated Http Component legacy layer

Upgrade instructions

  • Packages: Flow

TASK: Change version constraints for Neos packages to self.version

  • Packages: Kickstarter

TASK: Correct symfony dependencies in Flow composer.json

The upmerge commit e2b895120eb00a6c2a352ce22d84f0302b6c3c71 <https://github.com/neos/flow-development-collection/commit/e2b895120eb00a6c2a352ce22d84f0302b6c3c71>``_ wrongly removed symfony 6.0 in the version constraints of neos/flow.

  • Relates: #2999

  • Packages: Flow

TASK: Correct Flow composer.json

The upmerge commit 42e3fd7886d5bed317511a2046d4119867216923 wrongly overwrote major parts of Flows composer.json, introducing older versions of PHP and psr/log as well as removing dependencies on some other psr packages. This change corrects the issue and needs to be upmerged accordingly.

The changes were never merged into the collection composer.json so that the issue was not noticed in development environments.

  • Packages: Flow


We declare these dependencies in composer and it should not be necessary to validate them at runtime.

Upgrade instructions

  • Packages: Flow

TASK: Use generics via @template instead of PHPSTORM_META

Since the php universe evolved im gonna try https://github.com/neos/flow-development-collection/pull/2753 again ;)

Adds typings to:




by usage of the @template tag: https://phpstan.org/writing-php-code/phpdocs-basics#generics

This feature is supported by phpstorm, psalm and phpstan and also used widely in Neos 9

Upgrade instructions

  • Packages: Flow

TASK: Remove dead AfterInvocation related code

This was never properly implemented.

  • Packages: Flow

TASK: Remove persistence clone magic

This removed the code that set Flow_Persistence_clone in entities or value objects when they were ``clone``d.

As dynamic properties are deprecated with PHP 8.2, this caused warnings and will eventually break.

Since this was (re)-introduced in Flow 2 via `90cb65827c1550e9144e9f83b9231b430c106660 <https://github.com/neos/flow-development-collection/commit/90cb65827c1550e9144e9f83b9231b430c106660>``_ to support custom backends in the geenric persistence layer of Flow, like the (now outdated) ``TYPO3.CouchDB`, we felt it is best to remove it.

Upgrade instructions

If you rely on this, you need to adjust your code. Chances are, if you still need this, you use the generic peristsnece layer, which is gone in Flow 7 aready (see https://github.com/neos/flow-development-collection/pull/1769 and https://github.com/neos/flow-development-collection/pull/2262). So, you have other problems to solve, anyway…

  • Packages: Flow

TASK: Migrate to PHPStan (adjustments in Flow 9)

With https://github.com/neos/flow-development-collection/pull/3218 PHPStan level 1 was added to the whole Flow code base and CI for Flow 8. This upmerged change needs some adjustments to pass the CI in Flow 9

  • Packages: Eel Flow FluidAdaptor Kickstarter Cache

TASK: Carefully fix psalm types across codebase to make it green ;)

Upgrade instructions

  • Packages: Flow

TASK: Update default settings for stored throwable dumps

This updates the default settings in YAML to 30 days of dump retention and a maximum of 10.000 files.

The class properties keep their 0 default, so that in case the class has been extended no change is enforced.

Review instructions

Needs upmerge of https://github.com/neos/flow-development-collection/pull/3187

TASK: Use new Behat `FlowBootstrapTrait <https://github.com/neos/flow-development-collection/pull/3208>`_

Adjust to behat adjustments see https://github.com/neos/behat/pull/35

Upgrade instructions

  • Packages: Flow

TASK: document and deprecate flows internal isolated behat tests

Related https://github.com/neos/flow-development-collection/issues/3170

The infrastructure is quite complex and not in relation to those two tests. That’s why we declare it ready to be removed.

Upgrade instructions

  • Packages: Flow

TASK: Support PHP never, null, false, and true as stand-alone types

This change adds functional tests to prove that Flow can handle PHP 8 stand-alone return types in AOP proxy class building.

Note that “null” is not supported yet by laminas-code, therefore the corresponding test is not active yet.

  • Resolves: #3027

  • Packages: Flow

TASK: Use Laminas Code for proxy method rendering

Flow now uses laminas/laminas-code for rendering proxy methods. The Dependency Injection Proxy Class Builder was refactored and the classes ProxyConstructor and ProxyMethod were replaced by new implementations called ProxyConstructorGenerator and ProxyMethodGenerator respectively.

  • Resolves: #3042

  • Packages: Flow

TASK: Clean up code in AOP and ObjectManagement

This change contains various code clean-ups which fell off with the preparation of a new bug fix for AOP.

  • Packages: Flow

TASK: Replace “adviced” by “advised”

Fixed a good old typo everywhere in Flow by replacing all occurrences of “adviced” by “advised”.

  • Packages: Flow

TASK: Clean up functional tests for AOP

This also re-activates a functional test targeting PHP 7.1 features which was disabled at some point in history.

  • Packages: Flow

TASK: Only add constructor injection code if needed

The proxy class builder now skips code generation for constructor injection code if the given original class is prototype, no user-defined object configuration exists and all potentially autowired constructor arguments are prototypes or simple values. This change should result in a significantly less amount of proxy classes generated in most modern Flow projects.

resolves: #3049 resolves: #1539

  • Packages: Flow

TASK: Only add serialization entities code if needed

Proxy classes created by the Dependency Injection Proxy Class Builder now only contain code related to serialization and deserialization of related entities if needed.

The code is only rendered if one of the following conditions is met:

  • The class is annotated with Entity

  • The class is annotated with Scope(“session”)

Despite the previous condition, the code will not be rendered if the following condition is true:

  • The class already has a __sleep() method (we assume that the developer wants to take care of serialization themself)

As part of this change, the generated code related to serialization was slightly adjusted for stricter type handling.

related: #1539

Review instructions

  • try to find an existing application which relies on serialization of related entities, for example a Flow application which uses ORM with relations or uses entities in a session scope.

  • remove all caches and then access your application in a browser using the current Flow 9 branch (without this patch)

  • create a backup of the Cache/Code/Flow_Object_Classes directory

  • switch to a branch with this change, remove all caches and access the application again in a browser

  • use a diff tool (e.g. Kaleidoscope) to compare both cache directories to see what is now different

  • check if your application still works

  • Packages: Flow

Detailed log