Version 21 is here to use online. 1.28E Version 21 Installer
The carrier take off is fixed and the exe appears to work with the stock "DirSet Picker" scenarios.
Run the 7-zip self installer in your EAW folder.
It will replace two CDF files with extended versions fully compatible with earlier 1.28E exes, but containing default files that V21 needs.
It will put an "E 128EV21" folder in your "OAW128" folder, and also a "G-BigHill" folder.
"G-BigHill" is a test folder for ETO01 with some extra railway tracks, and TMods with numbers bigger than 255 near the Biggin Hill base.