Important announcement about incompatible change within Version 10 SP3, CONV_DATE WW will be changed back to behaviour in V9
From Version 10.0.3 on CONV_DATE WW will deliver the same results than in Version 9.00A means the result will be shown in UPPERCASE with 2 Digits and not as from Version 10 GA on Case Sensitive with first digit uppercase and 3 digits
Output in Version 10 GA - 10.0.2
Output in Version 9 and from 10 SP3
This makes it compatible with the behaviour of version 9.00A and also will ensure that this command will deliver the value in the same format as the command WEEKDAYS_XX
The Version 10 behaviour was not documented since it was an incompatible and unwanted change, the behaviour as it is going to be in 10 SP3 is the expected one.