Historical brief · 2026-11-12

1.15.40 - Core Updates and Feature Enhancements

This update brings several key improvements, notably removing chromadb from the embedding function layer and adding support for jsonl in rag data discovery. It also fixes async hook issues and improves agent stability, making AI development more reliable and smooth.

Source image · CrewAI Releases

Key Features

This release introduces significant structural changes, including the complete removal of chromadb from the embedding function layer to streamline operations. Additionally, it adds exact historical state lookup by row id, integrates jsonl into rag data type discovery, scaffolds standalone agents as JSON by default, and introduces comprehensive backend record lifecycle and pagination tests.

Bug Fixes and Documentation

On the maintenance side, the update ensures that after_llm_call hooks now properly run on asynchronous calls. It also addresses potential failures by stopping agents whose CrewAI AMP apps cannot be resolved, and updates the Arize agent evaluation guide URL for developers.

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Importance 58/100

Signal60Structure60Consequence55Confidence88Momentum50
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