# n8n n8n@2.21.7 — Release & Upgrade Intelligence
- **Product:** n8n (https://n8n.io)
- **Version:** n8n@2.21.7
- **Released:** May 21, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/n8n/updates/n8n-2.21.7/

## Executive Summary (TL;DR)
n8n n8n@2.21.7. Source highlight: **core:** Acquire expression isolate for scheduled polls (#30742) (6167d4a)

## Bug Fixes
- **core:** Acquire expression isolate for scheduled polls (#30742) (6167d4a)
- **core:** Populate manual user id on webhook execution data path (#30781) (50c55aa)
- **core:** Report scheduled-poll isolate acquisition failures via __emitError (#30792) (6321390)
- **core:** Validate non-empty prompts in AI vendor nodes before API calls (#30820) (15d0dbb)