Release / 16 Sep 2026 / with v2.84.1, v2.84.3, v2.84.4, v2.85.0, v2.86.0

n8n-MCP v2.87.0

Check native Python Code nodes and literal JMESPath queries before running workflows.

Before you upgrade to v2.87.0

1 to fix

Python checks follow n8n 2.x native-runner rules; literal JMESPath queries are checked, and distinct errors on one property are retained.

Behavior changedCheck node settings, workflow connections and expressions before deployment.Affects: Python Code-node and expression validation users

Read the evidence

czlonkowski/n8n-mcp/blob/v2.87.0/CHANGELOG.md

Result cards start collapsed by default.

Behavior changedView workflow operation and validation summaries as MCP Apps cards.Affects: MCP Apps users

Read the evidence

czlonkowski/n8n-mcp/blob/v2.85.0/CHANGELOG.md

Failed writes distinguish verified rollback, partial restoration and unconfirmed outcomes; folder-move caveats are included.

Behavior changedCreate, inspect, edit and delete workflows on an n8n instance.Affects: Callers recovering from failed workflow updates

Read the evidence

czlonkowski/n8n-mcp/blob/v2.87.0/CHANGELOG.md

For `PUBLISH_FORBIDDEN` on a saved draft, use an API key with `workflow:activate` scope and `workflow:publish` permission before retrying publication.

Action requiredCreate, inspect, edit and delete workflows on an n8n instance.Affects: Users saving published workflows on n8n 2.39+ without publish rights

Read the evidence

czlonkowski/n8n-mcp/blob/v2.87.0/CHANGELOG.md

Deployment receipts distinguish successful deployment from a failed post-deploy autofix.

Behavior changedDeploy a workflow template to an n8n instance with automatic fixes.Affects: Template deployment callers

Read the evidence

czlonkowski/n8n-mcp/blob/v2.85.0/CHANGELOG.md

What changed in v2.87.0

Check native Python Code nodes and literal JMESPath queries before running workflows.

Available through npm or Docker at v2.87.0. Instance management requires configured n8n API access.

Fixed and improved

Malformed node and connection payloads produce validation errors instead of crashing traversal.

Now worksCheck node settings, workflow connections and expressions before deployment.

Read the evidence

czlonkowski/n8n-mcp/blob/v2.84.3/CHANGELOG.md

Result cards restore workflow, execution and health inspection views and preserve validation failure context.

Limit liftedView workflow operation and validation summaries as MCP Apps cards.

Read the evidence

czlonkowski/n8n-mcp/blob/v2.85.0/CHANGELOG.md

Seeded by @iluxav with Codex, from the release's public sources. Each change links to its evidence.