| ⇢ | C | Kernel added |
| ⇢ | B | Kernel::registerBundles() added | |
| ⇢ | A | Kernel::getContainerBaseClass() added | |
| ⇢ | A | Kernel::registerContainerConfiguration() added | |
| ⇢ | A | Kernel::getCacheDir() added | |
| ⇢ | A | Kernel::getLogDir() added | |
| ⇢ | A | Kernel::isVagrantEnvironment() added | |
| B | ↗ | A | AppKernel::registerBundles() improved |
| A | ↛ | AppKernel::getContainerBaseClass() removed | |
| A | ↛ | AppKernel::registerContainerConfiguration() removed | |
| A | ↛ | AppKernel::getCacheDir() removed | |
| A | ↛ | AppKernel::getLogDir() removed | |
| A | ↛ | AppKernel::isVagrantEnvironment() removed |