--- a/src/changelog.txt	Sun Nov 25 15:15:27 2018 +0100
+++ b/src/changelog.txt	Thu Nov 29 10:50:57 2018 +0100
@@ -1,3 +1,130 @@
+[2.99]
+- Beta Version -
+NEW: 2.99Beta 5 as "99,5% ready 3.00 Stable"
+CHANGE: Improved detection of charging-completed.
+CHANGE: Gases whose ppO2 at current depth is between ppO2 max "normal" and ppO2 max deco are now color-coded in yellow while not in deco yet (they were colored red before).
+CHANGE: Faster display response when changing deco-related parameters.
+CHANGE: Further improvements in code quality, formatting and commenting as follows:
+
+- Changed color coding of current GF (supersaturation) value:
+
+  + GF factors enabled:
+    - attention (yellow) if current GF value >= GF-high value
+    - warning   (red   ) if current GF value >= 100%
+
+  + none-GF mode:
+    - attention (yellow) if current GF value >=  90%
+    - warning   (red   ) if current GF value >= 100%
+
+  => Resulting overall indications when violating a stop depth (in none-GF mode, 90% is used for GF_high):
+
+  1) When shallower than indicated stop depth but still deeper than ceiling *):   Attention on stop depth        (yellow)
+
+  2) When shallower than indicated stop depth and shallower than ceiling:         Warning   on stop depth        (red)
+     As the current GF will be >= GF-high in this situation, additionally:        Attention on current GF factor (yellow)
+                                                                                  Attention on depth             (yellow, blinking)
+
+  3) When shallower than indicated stop depth and ceiling, and outside ZHL-model: Warning   on stop depth        (red)
+                                                                                  Warning   on current GF factor (red)
+                                                                                  Warning   on depth             (red, blinking)
+
+     *) In GF mode, the ceiling depth is calculated at GF-high, in none-GF mode at 100% supersaturation.
+
+
+- Updated calculation of ascent time:
+
+  + When there is a ceiling but not yet a stop obligation (deco will vanish during ascent):
+
+      ascent time = current depth / ascent speed                                    rounded up to next full minute
+
+  + When in deco with indicated stops:
+
+      ascent time =    (current depth - depth of last stop) / ascent speed          rounded up to next full minute
+                    +  1 minute for each meter from depth of last stop to surface
+                    +  sum of all stop times
+
+  + when in deco with indicated stop(s) and shallower than the last stop:
+
+      ascent time =    1 minute for each meter from current depth to surface
+                    +  time of the pending stop(s)
+
+- De-cluttered and ordered dive mode custom views by topics:
+
+   1  average depth and stopwatch         - all modes
+   2  compass                             - all modes
+   3  ppO2 sensors                        - CCR & pSCR only
+   4  sensor check                        - CCR  mode  only
+   5  pSCR data                           - pSCR mode  only
+   6  tank pressure and SAC rate          - OSTC TR    only
+   7  gas needs for ascent                - deco modes only
+   8  gas needs for return                - cave mode  only, not yet available
+   9  deco plan                           - deco modes only
+  10  ceiling, current GF and tissues     - deco modes only
+  11  CNS values                          - deco modes only
+  12  ppO2, END/EAD and CNS               - deco modes only
+  13  GF factors                          - deco modes only
+  14  clock, battery and surface pressure - all modes
+
+                                            deco modes = OC, CCR and pSCR
+
+- Eliminated a use of the GF-high parameter in none-GF mode.
+
+- Improved rounding of first stop depth.
+
+- Improved calculation of NDL time.
+
+- Improved and streamlined calculation of CNS values at end of dive.
+
+- Improved switch-over from being within NDL to being in deco, and vice-versa. A stop time of ".." minutes will be shown
+  when there is already a ceiling obligation but deco calculation reveals that it will vanish during the ascent, given
+  the ascent speed limit is obeyed.
+
+- Fixed a bug in the calculation of the initial ascent.
+
+- Made overall deco calculations once more a little bit faster.
+
+- Stabilized timebase for blinking of setpoint display.
+
+- Improved handling of the condition when a bailout plan can not be computed due to no breathable bailout gas available.
+
+- Upfixed alternative divemode screen layout handling, fixed message suppression and automatic custom view switching in
+  combination with alternative layout.
+
+- Added an option for selecting if the max. depth or the average depth shall be shown in the main divemode screen.
+
+- Improved stability of the timebases used for calculating the average depths.
+
+- Removed erratic NDL outputs in gauge mode.
+
+- Fixed display of resettable dive time when it exceeds 99 minutes, 59 seconds:
+  + up to  99 mins, 59 sec display shows minutes:seconds
+  + after 100 mins         display shows hours:minutes
+
+- Improved energy saving by shutting down compass and accelerometer circuitry whenever compass is not shown.
+
+- For those that like underwater navigation with compass: when the compass is shown, the temperature display will
+  be replaced by a display of the resettable dive timer.
+
+- When configuring a manually set gas while the dive ("gas 6"), it's display will be color-coded according to the
+  set O2 ratio, the current depth and the ppO2 max thresholds, the latter automatically switching between normal
+  and deco ppO2 max on dive condition. After adjustment of O2 and He ratios, the gas can be finally taken by
+  selecting the "gas: xxx" item from the menu.
+
+- The better gas cue is now also given when switching while the dive to the manually set gas ("gas 6"). As long as
+  there is a regularly configured gas or diluent that fits for the current depth, a cue will be given towards this
+  regular gas/diluent. This cue can be suppressed by setting the cued gas/dil as lost.
+
+- The tissue graphics in dive mode now also displays the number of the leading tissue whenever the current gradient
+  factor is > 0% or when in deco. (remaining todo: there is a light flicker in the output)
+
+- Reworked the way the current firmware version and status (beta, release) is displayed, removed the "SP" notation.
+
+- Known limitation: after 18 hours, 12 minutes and 16 seconds of dive time:
+  + The average depths will show erroneous values.
+  + The resettable dive time will wrap around to 0.
+
+
+
 [2.98]
 - Stable Version -
 BUGFIX: "lost gas" was re-activated in rare cases