| B | ↗ | A | FileBackendGroup improved | 
| A | ↘ | B | FileBackendGroup::config() got worse | 
| C | ↗ | B | FileBackendGroup::get() improved | 
| B | ↘ | C | MemcLockManager::getLocksOnServer() got worse | 
| A | ↘ | C | MemcLockManager::freeLocksOnServer() got worse | 
| C | ↛ | MemcLockManager::doGetLocksOnServer() removed | |
| C | ↛ | MemcLockManager::doFreeLocksOnServer() removed |