[Release] crewaiInc/crewAI 1.14.3: 1.14.3

crewAI v1.14.3 introduces lifecycle events for checkpoint operations, adds support for e2b and Bedrock V4, and enhances sandbox capabilities with Daytona tools. The release includes significant bug fixes for checkpoint serialization, execution tracking, and streaming tool calls, plus a ~29% cold start optimization. Security patches for lxml and python-dotenv dependencies are also included.

Key Points

• •Implement lifecycle events for checkpoint operations to improve state management and resumption workflows
• •Add e2b and Daytona sandbox tool support for enhanced execution environments and functionality
• •Integrate Bedrock V4 support and Azure DefaultAzureCredential fallback for broader cloud provider compatibility
• •Fix execution_id separation from state.id and resolve checkpoint replay issues for reliable state recovery
• •Optimize MCP SDK and event types to reduce cold start latency by approximately 29%
• •Add checkpoint and fork support to standalone agents for improved agent autonomy and state management
• •Fix serialization of Task class-reference fields and initial_state class references for JSON schema compatibility
• •Preserve metadata-only agent skills and thought_signature in Gemini streaming tool calls during serialization
• •Upgrade security dependencies (lxml >=6.1.0, python-dotenv >=1.2.2) to address vulnerabilities
• •Refactor checkpoint helpers to eliminate code duplication and strengthen state type hints

Workflow Diagram

Concepts