n8n@2.21.7

n8n-io/n8nn8n@2.21.7May 21, 2026by n8n-assistant[bot]

AI Summary

A bug fix release addressing multiple core issues including expression isolate acquisition for scheduled polls, webhook execution data, and AI vendor node validation.

Key Highlights

Acquired expression isolate for scheduled polls
Populated manual user ID on webhook execution data path
Reported scheduled-poll isolate acquisition failures via __emitError
Validated non-empty prompts in AI vendor nodes before API calls

Full Release Notes

## [2.21.7](https://github.com/n8n-io/n8n/compare/n8n@2.21.5...n8n@2.21.7) (2026-05-21)


### Bug Fixes

* **core:** Acquire expression isolate for scheduled polls ([#30742](https://github.com/n8n-io/n8n/issues/30742)) ([6167d4a](https://github.com/n8n-io/n8n/commit/6167d4a3623d1a7ac73922737b71fb840b69ac9f))
* **core:** Populate manual user id on webhook execution data path ([#30781](https://github.com/n8n-io/n8n/issues/30781)) ([50c55aa](https://github.com/n8n-io/n8n/commit/50c55aa94b7d8605854d323ae527b7dc354b2448))
* **core:** Report scheduled-poll isolate acquisition failures via __emitError ([#30792](https://github.com/n8n-io/n8n/issues/30792)) ([6321390](https://github.com/n8n-io/n8n/commit/6321390a361d53c2322f047a943153e45c5846a0))
* **core:** Validate non-empty prompts in AI vendor nodes before API calls ([#30820](https://github.com/n8n-io/n8n/issues/30820)) ([15d0dbb](https://github.com/n8n-io/n8n/commit/15d0dbbcaf5899f33b1e3c49005a37e7ef565aae))