While you’re developing an application, you may need to rapidly iterate on the code, making small changes and then re-building. The update command applies any changes you’ve made to your code to the packaged application code.
It will not update requirements or installer resources unless specifically requested.
To repackage your application’s code for the current platform’s default output format:
$ briefcase update
To repackage your application’s code for a different platform:
$ briefcase update <platform>
To repackage your application’s code for a specific output format:
$ briefcase update <platform> <output format>
The following options can be provided at the command line.
Update application requirements.
Update application resources (e.g., icons and splash screens).
Update application support package.