Cập nhật vào ngày Oct 25, 2017
Declutter waypoint labels on map
Smooth optimization of target
Menu improvements including "layers" option for airspace
Fix METAR/TAF download
Fix "Pan" crash
Help button on Infoboxes
Bearing Difference Infobox
Simulator control over IAS/TAS
Improved airspace warnings
Increase Flarm font and image sizes
Show Flarm image with propeller for power planes
"Two minutes below start" display for US tasks
see http://downloads.tophatsoaring.org/TopHat_Releases/Tophat_2.2.2b_beta/NEWS.txt