CrewAI 1.15.2a2 adds Bedrock async support, rejects self-listening flows

Full analysis

CrewAI released version 1.15.2a2 (an alpha pre-release of 1.15.2), introducing aiobotocore as an optional dependency in the Bedrock extra — enabling asynchronous AWS Bedrock integration for agent workloads. The release also adds text helper utilities for flow CEL (Common Expression Language) prompts and skill examples, expands streaming documentation in the navigation, and fixes a bug that now explicitly rejects self-listening flow methods, which could cause infinite loops or undefined behavior in event-driven agent flows.