I’m sure all your existing customers really appreciate the incremental upgrades and new features you’ve integrated into your app over time. What started out as a simple thing is now a veritable feature-fortress.
But please, keep in mind the new-user-experience, for dudes like me who discovered your app 6 months later and who didn’t scrutinize the change-log from upgrade to upgrade and have no clue what the “Smooth” option in the menu actually does.
Go back to your introductory user experience / tutorial and make sure it actually does cover all the cool stuff you added in v1.1 – v1.3.1 instead of being eternally stuck at v1.0. Discoverability and help / documentation is a big deal for every release, even if it is at times difficult to have to ask Art Guy to come up with a new design instead of simply shoving a new, tiny, undocumented button into that free space on the bottom-right corner.

Sincerely, me.