Action done on pages
Ajax
API
Redis
Database
Global settings
MediaWiki constants
DifferenceEngine
Exception
Dump
ExternalStorage
Feed
File backend
File journal
Lock management
File Repository
File abstraction
HTTP
Deployment
PHP known bugs tests
JobQueue
UtfNormal
Cache
Pager
Parser
Profiler
Search
Skins
SpecialPage
Users watchlist handling
StatCounter
Upload related
Language
MaintenanceLanguage
Maintenance
Benchmark
Maintenance archives
Filtering constants