pipecat/changelog/4493.changed.2.md

• ⚠️ FrameProcessorSetup.pipeline_task and FunctionCallParams.pipeline_task are now mandatory fields, and FrameProcessor.pipeline_task raises if read before setup() instead of returning None. Real-world code (frame processors set up by PipelineTask, tool handlers invoked by LLMService) is unaffected; only callers that construct these dataclasses by hand (typically tests) now have to supply a pipeline_task reference.