Improvements since version 2013-02-20:

• using the mouse wheel allows to zoom
• when zoomed, pressing the middle mouse button allows to pan
• new, explicit exit buttons (on mobile platforms)
• pause game when the game window is minimized
• jump over the logos by pressing a key/mousebutton/the touchscreen
• improved image quality of the Runesoft logo
• improved image quality by using the best available SDL scaler
• multi language support
• upgrade to SDL 2.0.4
• squashed some bugs
• keep aspect ratio by passing argument /keepaspectratio to the game

Improvements since version 2012-11-06:

• pressing ALT+Return will switch between fullscreen and windowed mode
• pressing CTRL+G will grab/ungrab the mouse
  • input grabbing is enabled by default and can be disabled by starting Airline Tycoon Deluxe with the /noinputgrab argument
• English demo created
• an EXPERIMENTAL, UNOFFICIAL and UNSUPPORTED build for the Raspberry Pi got released
• revert back to a frequency of 22050 (fixes the sounds)
  • Fix another issue with music playback on newer SDL_mixer versions
• if SDL could not be initialized, print an error statement and quit gracefully
• disable XRandR usage in SDL - enabled it with the SDL_VIDEO_X11_XRANDR=1 environment variable
• fixed crash if using the /load parameter

Improvements since initial release:

• the binary is dynamically linked and all uncommon libraries are included
• support for other sound drivers like ALSA and Pulseaudio in addition to OSS
• play music files with a frequency of 44100 instead of 22050