# circup > The CircuitPython library updater. > More information: . - Interactively update modules on a device: `circup update` - Install a new library: `circup install {{library_name}}` - Search for a library: `circup show {{partial_name}}` - List all libraries on a connected device in `requirements.txt` format: `circup freeze` - Save all libraries on a connected device in the current directory: `circup freeze -r`