| ⇢ | A | KernelConfiguration added | |
| ⇢ | A | LoggerConfiguration added |
| ⇢ | A | KernelConfiguration::getConfigTreeBuilder() added | |
| ⇢ | A | LoggerConfiguration::getConfigTreeBuilder() added | |
| ⇢ | A | AbstractExtension::buildContainerParameterReferenc... added | |
| A | ↘ | B | Behat3SymfonyExtension::load() got worse |
| A | ↛ | KernelSubExtension::loadInitializer() removed | |
| A | ↛ | KernelSubExtension::loadSubscriber() removed | |
| A | ↛ | KernelSubExtension::loadContainerParameter() removed |