New in 1.53 Beta:
BETA Version - Do NOT use for diving!
CHANGE: License moved into Menu
NEW: Quick power on
NEW: Not used O2 Sensors are not shown (OSTC1 only)
NEW: O2 Board is automatically selected when found within the 1st second in divemode (OSTC1 only)

New in 1.52 Beta:
BETA Version - Do NOT use for diving!
NEW: Fixed-Setpoint ppO2 limited to physically possible value
BUGFIX: CF32 was displayed wrong on first call
NEW: Gas change recommendation in divemode ('*' after Gas)
CHANGE: "Const.ppO2 Setup" renamed to "CCR SetPoint Menu"
BUGFIX: CF35 now affects all items in surface and divemode
NEW: CF36 sets Divemode mask color (OSTC Mk.2 only)
BUGFIX: CF15 removed (OSTC Mk.2 only)

New in 1.51 Beta:
BETA Version - Do NOT use for diving!
BUGFIX: PC Simulator mode
NEW: CF35 sets standard color
BUGFIX: Display startup at very cold ambient temperatures
BUGFIX: Battery voltage accuracy
BUGFIX: Temperature accuracy
BUGFIX: ppO2 is displayed in Bailout mode

New in 1.50 Stable:
Initial release for OSTC Mk.2