Free42: Unlimited-length strings and other type extensions

[Thomas Okken]

That's a possibility... or the regular Free42 could have a setting in the preferences to select "classic" mode, which simply makes all the extra options disappear from the CATALOG, MODES, and PRINT menus, and maybe also prevents those functions from executing, for people using Free42 mainly for running legacy HP-42S programs and who are nervous about compatibility. Completely removing those functions so they're not even in the code just makes maintenance harder, and the cost of leaving them in is negligible.

I prefer for the version with equations, units, and big screen to be separate, and have a new name, so that it can be a separate (and paid) option in the iOS and Android app stores, and people not interested in that upgrade can continue to receive updates to the basic version.