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# Maintain, secure, and upgrade

This was once a long page covering a bunch of topics; those topics
have since all moved to dedicated pages:

### Monitoring

Moved to [Troubleshooting](troubleshooting.md#monitoring).

### Securing your Zulip server

Moved to [Security model](security-model.md).

### Upgrading

Moved to [Upgrading to a release](upgrade.md#upgrading-to-a-release).

### Upgrading from a Git repository

Moved to [Upgrading from a Git
repository](upgrade.md#upgrading-from-a-git-repository).

### Upgrading the operating system

Moved to [Upgrading the operating
system](upgrade.md#upgrading-the-operating-system).

### Scalability

Moved to [Scalability](requirements.md#scalability).

### Management commands

Moved to [Management commands](management-commands.md).

### API and your Zulip URL

Moved to [REST API](https://zulip.com/api/rest).