Here are the new features added over the last few releases:
1.7 - removed slot feature to save code/memory space, added course notes premium feature, fix distance rounding, add bullet points to datafield dropdown menu to improve settings UI, horizontal short labels if they do not fit vertically, rewrite of label layout and display code, fix BigScreen9 app name typo, fix longstanding bug where settings updates could be lost, fix BBS power bug, remove screen tapping on touchscreen devices, better label sizing across devices
1.6 - fix stack overflow problem in version 1.5, add configurable datafield for "food units" (aka pizza slices), add paused time datafield, add coasting time datafield, turn off bar ticks when pixel spacing is too small
1.5 - 0W mapped to zone 1.0, added work-in-zone and beats-in-zone graphical datafields (premium), added power, HR and custom bars (premium), add option for no grid lines, rework graphical marker to an anti-aliased triangle, added low/high settings for power, HR and custom bars (premium), reduced margins/spacing to optimize label and datafield sizes, added L and R variations of double layout (D)