Let's have a look at the aSmack commit history at https://github.com/Flowdalic/asmack/commits/master. The recent commit is just a few days ago. This doesn't look like the development has stopped. There can also be recent snapshots of the upcoming 4.0.0 version of aSmack found at http://asmack.freakempire.de/SNAPSHOTS/
This doesn't look like a project that has stopped. You should notify the author of the website stating that aSmack development has stopped.
BTW, plain Smack does not work on Android. You have to use aSmack.