| A | ↘ | B | DBLockingProvider got worse |
| A | ↛ | Classification removed | |
| A | ↛ | GenerateBirthdays removed |
| A | ↘ | B | MemcacheLockingProvider::acquireLock() got worse |
| C | ↘ | D | DBLockingProvider::acquireLock() got worse |
| A | ↛ | Classification::runForUser() removed | |
| A | ↛ | GenerateBirthdays::run() removed | |
| A | ↛ | Classification::run() removed | |
| A | ↛ | Classification::__construct() removed | |
| A | ↛ | Classification::extractClassification() removed | |
| A | ↛ | Classification::getName() removed | |
| A | ↛ | GenerateBirthdays::__construct() removed | |
| A | ↛ | GenerateBirthdays::getName() removed |