Are there any examples of apps that do that? As a consumer, I haven't ever heard of an app that offers this (e.g. goodnotes, LiquidText, MarginNote, Audulus and Things have new major releases and don't seem to do this)
Couple of the old school macOS dev houses tried this once this hack became visible and little birdies said the hack WAI. (ex. OmniGroup)
Since then, people have backed off.
If you're going to this much work to help users workaround Apple nonsense, you really care about helping them save money, and the support + refund costs of people accidentally buying the bundle with the old version they don't need is > just building out your own server-side system, versus a combinatorial explosion of bundles in the App Store that creates a confusing minefield for users.
