XOP Ultra - 6/16/2011

Original release

XOP Ultra R1 - 12/30/2012

Added online highscore support
Graphics tweaks

XOP Ultra R2 - 6/1/2013

Smooted enemy/background art
Added smoothing option
Added no borders mode
Added highscore browsing
Removed highscores from Beginner skill

XOP Ultra R3 - 2/23/2014

Removed Beginner skill

XOP Ultra R4 - 10/23/2014

Removed branding
Added better fullscreen color fix
Added extra menu option to disable score tags

XOP Ultra R5 DOS - 7/3/2017

Changed compiler options to fix a crash in DOSBox

XOP Ultra R6 - 2/1/2018

Removed Maniac mode
Changed Online Highscore server
