About TC version numbers...

[MaxX]

I've just checked history file and found some interesting facts...

See:

14.12.16 Release Total Commander 9.0a final (32/64)
23.11.16 Release Total Commander 9.0 final (32/64)
17.09.15 Release Total Commander 8.52a final (branch with just bugfixes) (32/64)
26.08.15 Release Total Commander 8.52 final (branch with just bugfixes) (32/64)
30.04.14 Release Total Commander 8.51a final (32/64)
23.04.14 Release Total Commander 8.51 final (32/64)
19.02.14 Release Total Commander 8.50 final (32/64)
03.08.12 Release Total Commander 8.01 final (32/64)
23.05.12 Release Total Commander 8.0 final (32/64)
17.12.10 Release Total Commander 7.56a final
29.11.10 Release Total Commander 7.56 final
07.07.10 Release Total Commander 7.55a final
17.06.10 Release Total Commander 7.55 final
15.06.10 Release Total Commander 7.55 final (pre2)
11.06.10 Release Total Commander 7.55 final (pre)
24.09.09 Release Total Commander 7.50a Final
09.09.09 Release Total Commander 7.50 Final
29.07.08 Release Total Commander 7.04 final
23.04.08 Release Total Commander 7.03 final
14.09.07 Release Total Commander 7.02a final
05.09.07 Release Total Commander 7.02 final
21.06.07 Release Total Commander 7.01 final
06.06.07 Release Total Commander 7.0 final
01.01.07 Release Total Commander 6.56 final
23.10.06 Release Total Commander 6.55a final
26.07.06 Release Total Commander 6.55 final
16.02.06 Release Total Commander 6.54a final
02.02.06 Release Total Commander 6.54 final
31.05.05 Release Total Commander 6.53 final
30.04.05 Release Total Commander 6.52 final
02.02.05 Release Total Commander 6.51 Final
17.01.05 Release Total Commander 6.50 Final
16.04.04 Release Total Commander 6.03a Final
14.04.04 Release Total Commander 6.03 Final
03.03.04 Release Total Commander 6.02 Final
03.12.03 Release Total Commander 6.01 Final

1. Why do you use "a" letter instead of ".1" or next number? There's no reason to save numbers if you do NOT use them all.

2. Why is there NO "X.2x", "X.3x", "X.6x", "X.7x", etc... numbers?

[umbra]

My observation is that while "X.0x" and "X.5x" are big releases, everything else are service releases with bugfixes and occasional features.

And why there are no "X.6x", "X.7x", etc? There are only 60 minutes in an hour. Check the edit time of TC files and you will see there the TC version. E.g TOTALCMD.EXE 8.52a has edit time 8:52:10. This and using letters instead of numbers for tiny releases used to be common in the past and some still use it today.

[ghisler(Author)]

The .a releases are minor bugfix releases which are released shortly after a bigger release. They fix bugs reported only after the final release.