Change Log Polyvera firmware v0.28 vs 0.23
-More consistent arpeggiator behavior
-Lfo leds and waveform display reflect the latest triggered note
-Extended mini-keyboard transpose method
-Added sample playhead to display
-Delete all notes in step seq also re-initializes notes lengths
-Improved navigation between seq, step rec and arp
-Updated chord mode notes input
-Various bug fixes

Change Log Polyvera firmware v0.28 vs 0.23
-Added sustain MIDI message reception
-Calibration now retained after firmware upgrade (from next firmware update)
-Mac files metadata automatically deleted from SD
-Reduced LFO leds brightness
-Corrected channel aftertouch parsing in USB MIDI mode
-Improved MIDI and panel error resilience
-Introduced framework for managing hardware releases

Change Log Polyvera firmware v0.30 vs 0.28
-New superwave oscillator type
-Added configurable sub1 waveform
-Added configurable sub1 transpose (-12,-19,-24)
-Updated Mod menu look, making src/dst/level visible on same screen
-Changed way of triggering mini keyboard (shift+any menu button)
-Smoother presets browsing
-Added setting for retaining wavetable interpolation mode while browsing wavetables
-Corrected midi rx channel bug in Classic mode
-Improved external synchronization
-Improved panel stability
-Corrected osc1 styles scrolling in menu

Change Log Polyvera firmware v0.31 vs 0.30
-Fixed panel refresh during preset rename
