As there has been a discussion in a closed issue about this topic at github, which is more or less invisible for most users, I want to reveal that discussion here.
This is the issue at github:
And here is a Delta Chat fork existing which targets DC’s main features for Android 4.1:
Please see changes and enhancements of this version in changelog.
Due to my own needs I did this fork. But as an outcome of the discussion it would be very interesting for developers how many users would still need a DC version with minimal requirement for Android 4.1 (sdk16)?
We want to make a survey and everyone who’s interesting in an Android 4.1 version should speak up here to get an overview.
Current official DC version meanwhile upgraded some few parts of the code to a minimum requirement of Android 4.4 (sdk19). These parts are not working any more at a 4.1 device. If you use it an error message toast is shown, but no function.
Examples are a) image editing b) video recoding (video attachment) c) badge counter at start screen icon.
( c) may be a problem at other Android versions too)
I can imagine to support an Android 4.1 fork with main features for a certain time.
All comments welcome now!