v1.0.0 release This release breaks the program into subcommands: 1. `ip` 2. `update` `ip` is meant to be a convenience function to quickly return your public IP. `update` is the original functionality of the program which takes a required `--domain` flag and an optional `--subdomain` flag. Because of the transition to subcommands this release is not backwards compatible with previous releases. Please update any existing invocations of the program to use the new `update` subcommand.