n8n

Recent patch trains and the v2.30 minor brought Instance AI reliability, broader Microsoft auth options, and stabilization across the execution engine.

Instance AI hardened end to end. Billing routed to a dedicated credit pool, AI Assistant domain-access approvals now persist across restarts, and output is preserved for runs stopped before completion. The editor keeps AI Assistant thread state intact on hand-off between tabs, and live-run UI restores correctly after HITL reconnect.

Microsoft integrations gained Service Principal auth. Excel, Teams, and To Do nodes added app-only authentication via Service Principal credentials, and Microsoft Entra Service Principal added certificate-based auth alongside OAuth2.

MCP and AI Agent nodes received targeted fixes. The MCP Server Trigger evicts idle sessions to prevent memory leaks, and the MCP Client no longer sends undefined tokens. The AI Agent node preserves parallel tool-call structure in chat memory and returns intermediate steps when no tools are used.

Execution engine patched for correctness. Expression evaluation now acquires the correct isolate for both node inputs and parameters. Webhook execution promises settle on early errors, database connection recovery runs only for Postgres, and null run-data slots no longer crash execution redaction.

API and project management expanded. Public API endpoints for reading evaluation test runs and exporting projects shipped. A unified N8N_WEBHOOK_URL env var covers both production and test webhook URLs.