New in 1.91 beta:
BETA Version - Do NOT use for diving!
BUGFIX: Ignore depths>130m in PC simulation
BUGFIX: Avoid spurious CF55 stops with 3 gas or more
BUGFIX: Average depth in Logbook (For dives made with >=1.91)
BUGFIX: Logbook time scale (squares are 10min * 10m)
BUGFIX: Bühlmann half-times rounded to the minute
BUGFIX: Protect again rare race contition on pressure/temperature
CHANGE: CF02 now allows delay of more then 240seconds
CHANGE: First gas do not reset change depth
CHANGE: Logbook format 21: store & shows dive model (sat/desat or GF_low/high factors),
        CNS profile, GF profile.
        WARNING: the upgrade is not reversible without loosing all your profiles.
NEW: "Quit Sim" in divemode simulator menu for exiting the simulation
NEW: Allow -2:00 to +2:00 adjustement per day (CF48).
NEW: 1/10/100 steps in CF menu
NEW: 64kByte Logbook (Doubled capacity compared to 1.90)
NEW: Additional dive interval for simulator and decoplaning
NEW: Negative temperatures in logbook and battery information menu
NEW: Screen dump support

New in 1.90 Stable:
Stable release

New in 1.89 beta:
BETA Version - Do NOT use for diving!
NEW: ppO2 in case of a loop flush can be displayed in CCR mode
NEW: Fixed Setpoint with color warnings
BUGFIX: Fixed Setpoint behavior >2,55bar with CF38=ON
NEW: Future TTS also available in no-deco phase of dive

New in 1.88 beta:
BETA Version - Do NOT use for diving!
CHANGE: CF warning window moved to upper right corner
BUGFIX: Gas4 fixed
NEW: Future TTS (@xx Variant) in Custom View (Divemode)
NEW: CF58 (0-10 min): Computes Future TTS in xx min

New in 1.87 beta:
BETA Version - Do NOT use for diving!
CHANGE: Runtime simulator faster
BUGFIX: "Active?" list in Divemode
NEW: Display CNS in decoplan
NEW: Colored stops in decoplan (CF55 > 0)
NEW: 115kbaud/s bootloader
NEW: Colored battery sign when charging (yellow) or charged (green)
CHANGE: Battery symbol filled
BUGFIX: Apply salinity for ceiling warning
CHANGE: Gas Setup page 2 reworked (MOD depth default)
BUGFIX: x-scale in Logbook fixed
CHANGE: Some typos in English text
NEW: Display ppO2[Diluent] in CCR modes
NEW: Display EAD/END in OCR and CCR modes

New in 1.86 beta:
BETA Version - Do NOT use for diving!
BUGFIX: Average depth in Logbook fixed
BUGFIX: Stand-alone simulator

New in 1.85 beta:
BETA Version - Do NOT use for diving!
BUGFIX: zero gas rate (bug bb28)
BUGFIX: Safer rounding (bug bb29)
CHANGE: making the seconds display in divemode smoother

New in 1.84 beta:
BETA Version - Do NOT use for diving!
BUGFIX: NoFly time should not be reseted after dive simulation.
NEW: High altitude (Plane/Fly) mode added
NEW: Gaslist, Salinity, CNS and Average depth displayed in Logbook
NEW: Internal logbook shows Gas changes
NEW: Release in French, Spain, English and German (Use correct HEX file!)
CHANGE: Set Time menu

New in 1.83 beta:
BETA Version - Do NOT use for diving!
BUGFIX: gas switch
NEW: De/Activate gases underwater (Gaslist -> More -> Actve?)
NEW: Gas Consumption caluculation in offline simulator (After Decoplan)
NEW: CF56 Bottom gas usage (l/min or bar/min) (For Simulator)
NEW: CF57 Ascent/deco gas usage (l/min or bar/min) (For Simulator)

New in 1.82 beta:
BETA Version - Do NOT use for diving!
CHANGE: Speed optimization in Logbook
NEW: Scale for Profile view in Logbook (10m,10min)

New in 1.81 beta:
BETA Version - Do NOT use for diving!
NEW: Release in French, Spain and English (Use correct HEX file!)
CHANGE: ZH-L16 display all stops (up to 96m), as ZH-L16-GF mode
BUGFIX: Don't wrap TTS sum (still limit each stop display (not compute) to ~4h)
NEW: CF54: =1:Display shallowest stop first (decoplan and divemode)
BUGFIX: Inactive gases greyed-out in Simulator results
BUGFIX: "Better Gas" now works for Gas 4 and Gas 5, as well
NEW: GF_lo and GF_hi stored in logbook
BUGFIX: Gradient factor reworked
NEW: CF55: Additional delay for gas switch (decoplan, includng divemode)

New in 1.80 Stable:
Stable release
BUGFIX: No Custom view in Surfacemode as default

New in 1.76 Beta:
BETA Version - Do NOT use for diving!
NEW: "beta" is shown for beta versions
CHANGE: NoFly and Desaturation time only visible when > 0
CHANGE: "LowBatt!" Warning in Divemode

New in 1.75 Beta:
BETA Version - Do NOT use for diving!
BUGFIX: Decomask in Gauge mode removed
NEW: Decoplan rewritten, now has practically unlimited number of stops (OSTC MK.2 only)
NEW: Altimeter (OSTC MK.2 only)
BUGFIX: Timeout reset in Customview  (OSTC MK.2 only)
BUGFIX: Surface Interval
NEW: Non-Resettable Average Depth (OSTC MK.2 only)
NEW: CF41: Mix Type Icons in Surfacemode (OSTC MK.2 only)
NEW: CF49: Show Altimeter in Surfacemode (OSTC MK.2 only)
NEW: CF50: Show LogMarker in Divemode/Customview (OSTC MK.2 only)
NEW: CF51: Show Stopwatch in Divemode/Customview (OSTC MK.2 only)
NEW: CF52: Show Tissue Graph in Divemode/Customview (OSTC MK.2 only)
NEW: CF53: Show Leading Tissue in Divemode/Customview (OSTC MK.2 only)
NEW: CF39: Adjust fixed SetPoint if Diluent ppO2 > SetPoint (OSTC MK.2 only)
BUGFIX: Custom view for Apnoe mode disabled
BUGFIX: Custom view for Gauge mode adjusted

New in 1.74 Beta:
BETA Version - Do NOT use for diving!
NEW: Added END (Equivalent narcotic depth) for GasSetup
CHANGE: Limits for several Custom Functions  (OSTC MK.2 only)
BUGFIX: Realtime Simulator menu
NEW: Customview for Surfacemode (OSTC MK.2 only)
NEW: Icon for Tank mix on Surface screen (OSTC MK.2 only)
BUGFIX: Stopwatch Reset

New in 1.73 Beta:
BETA Version - Do NOT use for diving!
NEW: Anti-Alised fonts (OSTC MK.2 only)
NEW: Removed CF39 - Clock moved into Customview area  (OSTC Mk.2 only)
NEW: Custom functions menu more comfortable  (OSTC Mk.2 only)
BUGFIX: Surface interval now correct for repetitive dives
CHANGE: Changes in divemode layout  (OSTC Mk.2 only)

New in 1.72 Beta:
BETA Version - Do NOT use for diving!
BUGFIX: TTS display while decoplan is displayed
CHANGE: Stopwatch reset is blocked for one second after divemode menu exit (OSTC Mk.2 Only)
NEW: Gas list is color-coded  in Color# Warnings if ppO2 of gas > CF18 (ppO2 High warning) (OSTC Mk.2 Only))
CHANGE: Exchanged "Gaslist" and "Decoplan" in Divemode menu
BUGFIX: ppO2 warning for very high ppO2 levels

New in 1.71 Beta:
BETA Version - Do NOT use for diving!
BUGFIX: Custom text can be 23chars again
BUGFIX: Simulator descends to exact depth
NEW: Added CF39: =1 shows clock in divemode (OSTC Mk.2 only)
BUGFIX: Surface Interval not afffected from Simulator
CHANGE: "Decosum" changed to "TTS" (Time to Surface)
NEW: Up to 16 Deco Stops are displayed in Divemode and Simulator (GF Modes only)
NEW: CF40 added (=1: Ceiling violation displayed in Color# Warnings (OSTC Mk.2 Only))

New in 1.70 Stable:
Stable release
WARNING: This update will reset all Custom Functions!
BUGFIX: Gas Changes for Simulator

New in 1.65 Beta:
This is the 1.70 Stable release candidate
BETA Version - Do NOT use for diving!
CHANGE: Restored original Gas Setup
CHANGE: CF25 (Deco Debug) default to 0
BUGFIX: Velocity warning (CF47) only for ascend

New in 1.63 Beta:
BETA Version - Do NOT use for diving!
CHANGE: CF15 defines threshold for CNS display in Surfacemode (OSTC MK.2 only)
NEW: CF48 sets positive clock offset [seconds/24h], added at Midnight
BUGFIX: CNS restored after simulation

New in 1.62 Beta:
BETA Version - Do NOT use for diving!
CHANGE: More space around divemode-menu 
CHANGE: Disabled "Delete Dive" in logbook
CHANGE: Simulated dives are no longer stored in the logbook
NEW: Simulator is much faster now
NEW: New Simulation results screen
BUGFIX: CF Warning displayed in Color# Warnings (OSTC Mk.2 only)
NEW: Gas Setup sorts Gaslist
NEW: Deco Code uses all Gases for forecast

New in 1.61 Beta:
BETA Version - Do NOT use for diving!
CHANGE: "Better Gas" now blinks more eye catching
CHANGE: Battery symbol range changed (OSTC Mk.2 Only)
NEW: Added CF37: Color# Warnings (OSTC Mk.2 Only)
NEW: Color# = 0,4,8,192,196 and 200 (Black or very dim) is ignored  (OSTC Mk.2 Only)
BUGFIX: History not updated in Simulator mode
BUGFIX: Fixed-Setpoint (minimum) ppO2 limited to physically possible value
NEW: Depth, CNS, GF, ppO2 and Velocity are Color-coded (OSTC Mk.2 Only)
NEW: CF43: Depth [mBar] for color-code display (OSTC Mk.2 Only)
NEW: CF44: CNS [%] for color-code display (OSTC Mk.2 Only)
NEW: CF45: GF [%] for color-code display (OSTC Mk.2 Only)
NEW: CF46: ppO2 [cBar] for color-code display (OSTC Mk.2 Only)
NEW: CF47: Velocity [m/min] for color-code display (OSTC Mk.2 Only)
CHANGE: Change of color layout (OSTC Mk.2 Only)

New in 1.60 Stable:
Stable release

New in 1.56 Beta:
BETA Version - Do NOT use for diving!
BUGFIX: Inactive Gases in Divemode greyed out (OSTC Mk.2 only)
NEW: Scale in Tissue Graph (OSTC Mk.2 only)
NEW: Leading Tissue percent is displayed in Tissue Graph (OSTC Mk.2 only)
NEW: Diluent is shown in Pre-Dive screen for CC modes

New in 1.55 Beta:
BETA Version - Do NOT use for diving!
CHANGE: Greyed out gases more readable
CHANGE: Removed "Delete All" from Logbook Menu
NEW: CF42=1: Active Gas will blink if a better gas is available
CHANGE: Returning from Bailout to CCR mode will not reset diluent gas

New in 1.54 Beta:
BETA Version - Do NOT use for diving!
BUGFIX: Freeze at startup

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: Quick-View of Gaslist (Pre-Dive Check), press ENTER in Surfacemode

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