How updates are handled for commercial applications?

I'm planning on publishing a commercial (paid) application to Software Center and I've seen that during the process of submiting the app I have to upload a .deb package. I'd like to know if there is any way to submit updates to my certain application once it is already in Software Center. As far as I know apps from the Software Center are all in a ppa and that's how they get the updates, but in my case, there would be no ppa (correct me if I'm wrong)

Thanks

Solution 1:

You don't upload a .deb package, you upload a source package, which can be built in to a .deb package.

This is then put in a PPA to build the .deb packages that users will install.

Therefore there is a PPA behind the scenes.

You can then submit updates to your application by uploading an updated source package at a later date. This will then be reviewed and go through QA before being made available to users.

I look forward to seeing your application in the Software Center.