Add following features to Nevolution:

* Better status-bar notification icon compatibility on Android pre-6.0.
* Seamless experience without any notification loss when Nevolution is being upgraded.
* No notification loss if Nevolution is crashed in any case.
* More to come...

-----

Main app of Nevolution: play.google.com/store/apps/details?id=com.oasisfeng.nevo
From version Extension Pack for Nevolution 2.1:
Prepare for new features
All versions