Poweramp v3 is now the official release version of the app, and due to the new user interface functionality it requires a minimum ROM version of Android 5.0 (Lollipop).
For further discussions, feature requests, or bug reports, please visit the forums.
Archived copies of older releases are also available if you wish to roll back to a previous version for any reason. Caution should always be advised when rolling back any software, just in case new settings or features may have been added which may no longer be compatible with older versions.
Users of Android 4.4.x (Kit Kat) and below can still download and use Poweramp v2, and also the earliest test versions of the v3 high-res audio engine (prior to the new user interface being added, i.e. builds 700 to 709).