# chainctl > The official CLI for Chainguard. > More information: . - Authenticate to the Chainguard Platform: `chainctl auth login` - Logout from the Chainguard Platform: `chainctl auth logout` - Check which version you have installed: `chainctl version` - Update to the latest version: `chainctl update` - List images available to your account: `chainctl images list` - List image repositories available to your account: `chainctl images repos list` - Examine the history of an image tag in chainctl (e.g., image=python tag=3): `chainctl images history {{image}}:{{tag}}` - List package version data from repositories available to your account (e.g., package_name=go): `chainctl packages versions list {{package_name}}`