I don't think there are any significant feature changes from the previous beta to this week's beta but there are numerous small chart tweaks such as the TMZ/RMZ markings already spotted. The complete list of changes for 3.3.0 is below, though not everything will apply to Android.
Vector aerodrome charts are now included in selected areas (iOS, Android, PC)
SIGMET are now included in the weather briefing screen (iOS, Android, PC)
TAF and METAR are now refreshed significantly faster; an average of three minutes between publication and showing in SkyDemon (iOS, Android, PC)
The TAF and METAR decode screens have been replaced with one Weather screen to improve legibility and consistency between products (PC)
The User Waypoint Editor has been overhauled to be more friendly (iOS)
Export to GFP format for the Garmin GTN series of devices is supported (PC)
The size of the font used in PLOG printing can now be explicitly specified (PC)
Increased chart loading performance on startup (iOS, Android, PC)
Highlighting of geometric and positioned items on the map has been improved, especially at large scales (iOS, Android, PC)
Stability issues affecting SkyDemon software on primarily Lollipop devices have been resolved (Android)