n8n 2.42.0: Agents on by default; AI Agent Tool nesting; MCP client/registry + Azure AI Foundry rename
n8n shipped [[email protected]](https://github.com/n8n-io/n8n/releases/tag/[email protected]) on 2026-09-29: Agents enabled by default (#39312); AI Agent Tool can use its own tools under a pre-v3 parent agent (#39160); MCP Client terminates sessions before close, MCP Registry flag removed from AI Assistant, editor adds Mistral Vibe to MCP picker; Azure OpenAI Chat Model renamed Azure AI Foundry with project/deployment listing and Entra app sign-in; plus shared Agent context and Agent Builder UX polish.
- •Release [email protected] on 2026-09-29; compare 2.41.0...2.42.0
- •Agents enabled by default (#39312); shared Agent context (#38930)
- •AI Agent Tool nests its own tools under pre-v3 parents (#39160)
- •MCP: terminate session on client close; Registry ungated in AI Assistant; Mistral Vibe in MCP picker
- •Azure OpenAI node renamed Azure AI Foundry Chat Model; docs AI Agents