| 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 |