3.12 - 3.99, then 4.11 - 4.99, then...

suggestion for number base:

3.12 - 3.99
4.11 - 4.99
5.11 - 5.99
...
9.11 - 9.99

reasoning:

1) 2 digits less than 3 (3rd digit for maintenance releases)
2) the above numbering keeps all in alphabethical order
3) 3.11 dropped for not mismatching with something from early nineties

Note that if there is like 6 releases per year, this numbering scheme
would take us far into 22nd century -- probably into 23rd...