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n8n 3.0 is not out yet: n8n plans it for October 2026 and the stable release is 2.39.6. To prepare a Docker install, open Settings > Migration Report, replace the removed nodes, pin the defaults that change, move binaryData to storage and try the v3-nightly image on a copy.
n8n is not open source: its Sustainable Use License limits you to your own internal business purposes and forbids charging people to access a hosted instance. Activepieces publishes its core under MIT but keeps agents, projects and API access outside it. Windmill compiles to AGPLv3 from source, yet the distributed Community Edition is not open.
n8n is the low-code automation project that has best adapted to self-hosting. A walk through the real install with Docker Compose, the database and queue decisions to make, and the points where most people trip up the first time.
