pipecat/changelog/4405.added.5.md

• Added ExternalUserTurnCompletionStopStrategy in pipecat.turns.user_stop — a generic stop strategy that finalizes the user turn whenever a UserTurnCompletedFrame arrives, regardless of which component produced it. LLMTurnCompletionUserTurnStopStrategy now extends this base; future producers (Flux, custom end-of-turn classifiers, etc.) can use the base directly or subclass it to add producer-specific setup.