The current situation is: If the date you want to enter is in the range 01/01/1930 through 12/31/2029, you can enter the year with two digits; otherwise, enter the year with four digits.
If the user types 29 it is interpreted like 2029 but if he types 30 it is interpreted like 1930 that is confusing for the users.

We like this behavior to be changed so that the range is taken from windows setting or that it can be configured some ware else.