You are self-hosting, so it generally depends on the host provider. If you have control over the container image, you can redeploy the latest n8n image using n8nio/n8n:latest
I found these instructions for RepoCloud that might help:
To update n8n on RepoCloud, you can follow these steps:
1- Access Instance Management: Go to your n8n application management page in the RepoCloud dashboard.
2- Check Current Version: Look for the current version information in the “Overview” section.
3- Initiate Rebuild: Click the “Rebuild” button to start the update process.
4- Confirm Action: Confirm the rebuild when prompted.
5- Monitor Progress: A progress indicator will show the status of the update.
This process will update your n8n instance to the latest stable version while preserving your data and configurations.