The following highlights are in this 1.51-release ince v1.50:

+ 1.51	
                Fix for squished screen
                Only request passband when there is a scope available
                Change default passband colors.
                Fix passband colorswatch
                Ignore second VFO scope data (for now)
                Silently ignore server audio issues if server is not enabled.
                Always use 8bit encoding for audio device names
                Make multimedia-plugins message only for Linux
                Add PSK modes to IC-7610 and to passband.
                Add passband for FM mode
                Added click-drag tuning. Needs refinement but it's a start.
                colorpicker: Move to 3 columns
                passband indicator
                Remove logging of audio device realm
+ 1.52		added cluster spotting including color picker suport
    		optional SQLITE in memory for spots (disabled)
+ 1.53          modified band buttons to look more alike the layout on the rigs
		audio selction combobox shows full devicenames
    		Fixed color preset zero issue.
    		Fixed unusual set of conditions in which manual CI-V address would fail
    		to identify the connected radio. 
    		Fixed broken RTS preference. Added preliminary (and untested) support
    		for the IC-703, 737, 738, and 756.
    		added libs for suse builds; it also builds on leap 15.5
    		Add skimmer support (setting not saved)
    		Add AR Cluster support
+1.54		Various wfserver fixes
		logging using termbin edge case fix
		
Notes:

- We know about high CPU usage on RPi.
- try the audiostack you like the most/what works for you