Soft volume doesn't work

[anabolyc]

Version 0.3.0 downloaded from release page. Flashed as binary.

Whenever I try to change volume via web UI or Spotify controls, it doesn't change. Seens to stuck in maximum position.
When connected via Terminal see this in the log

D [core] Core.cpp:116: Got event
attribute_error: the 'Playback' object has no attribute 'set_soft_volume'
stack traceback:
        string:272: in function `apply_volume`
        string:96: in function `_anonymous_`
        string:49: in function `handle_event`
        string:18: in function `_anonymous_`
        string:89: in function `handle_event`
        string:287: in function `handle_event`