| Unlink | Control.Eff.Concurrent.Process, Control.Eff.Concurrent, Control.Eff.Concurrent.SingleThreaded, Control.Eff.Concurrent.Pure |
| unlinkProcess | Control.Eff.Concurrent.Process, Control.Eff.Concurrent, Control.Eff.Concurrent.SingleThreaded, Control.Eff.Concurrent.Pure |
| unwrapStrictDynamic | Control.Eff.Concurrent.Process, Control.Eff.Concurrent, Control.Eff.Concurrent.SingleThreaded, Control.Eff.Concurrent.Pure |
| update | Control.Eff.Concurrent.Protocol.StatefulServer |
| UpdateProcessDetails | Control.Eff.Concurrent.Process, Control.Eff.Concurrent, Control.Eff.Concurrent.SingleThreaded, Control.Eff.Concurrent.Pure |
| updateProcessDetails | Control.Eff.Concurrent.Process, Control.Eff.Concurrent, Control.Eff.Concurrent.SingleThreaded, Control.Eff.Concurrent.Pure |
| useModel | Control.Eff.Concurrent.Protocol.StatefulServer |
| userLevelMessages | Control.Eff.Log.Message, Control.Eff.Log, Control.Eff.Concurrent, Control.Eff.Concurrent.SingleThreaded, Control.Eff.Concurrent.Pure |
| uucpSubsystem | Control.Eff.Log.Message, Control.Eff.Log, Control.Eff.Concurrent, Control.Eff.Concurrent.SingleThreaded, Control.Eff.Concurrent.Pure |