🚀 Release 2.18.0#28768
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n8n-release-helper[bot] merged 1 commit intorelease/2.18.0from Apr 21, 2026
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Architecture diagram
sequenceDiagram
participant UI as Editor UI
participant API as Backend API
participant KMS as KeyManagerService
participant DB as Database / Repository
participant Env as Env Vars / OIDC
Note over API,DB: NEW: System Startup / Key Lifecycle
API->>KMS: NEW: Initialize Key Management
KMS->>DB: NEW: Fetch/Persist deployment_key
Note right of DB: Ensures encryption stability<br/>across restarts/rotation
DB-->>KMS: deployment_key confirmed
Note over UI,API: CHANGED: Dynamic Parameter Request
UI->>API: GET /node/params (dynamic lookup)
API->>API: CHANGED: Enforce Credential Access Check
alt User has credential access
API->>DB: Query node metadata
DB-->>API: Metadata
API-->>UI: 200 Return parameters
else User lacks permission
API-->>UI: NEW: 403 Forbidden (Strict Security)
end
Note over UI,Env: NEW: OIDC / SSO Configuration
Env->>API: Load OIDC Settings from ENV
UI->>API: Request Login Flow
API->>Env: Redirect to OIDC Provider
Env-->>API: Auth Code
API->>API: NEW: Re-initialize SSO Store
API-->>UI: Login Success + Redirect URL
Note over UI,API: AI Orchestration (Execution)
UI->>API: Execute AI Agent/Workflow
loop Max 60 Steps (CHANGED from 5)
API->>API: Orchestrator Step
API->>DB: NEW: Scope Artifacts to Current Thread
end
API-->>UI: Return Thread-Specific Resources
Note over API,DB: Task Failure Handling
alt Parent Task Fails
API->>API: CHANGED: Cascade-cancel dependent tasks
API->>DB: Update planned task statuses
end
Bundle ReportBundle size has no change ✅ |
Codecov Report✅ All modified and coverable lines are covered by tests. 📢 Thoughts on this report? Let us know! |
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merged commit 6336f0a
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release/2.18.0
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Performance ComparisonComparing current → latest master → 14-day baseline docker-stats
Idle baseline with Instance AI module loaded
Memory consumption baseline with starter plan resources
How to read this table
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2.18.0 (2026-04-21)
Bug Fixes
Features
require-node-description-fieldsESLint rule for icon and subtitle (#28400) (5504099)Reverts