Mapping Builtin function does not work as before

Hi Experts,

after we patch our PO system from 7.40 SP05 to SP09, some of the builtin mapping function does not work as before. Partically we have notice that the "DateBefore" function has different conextswitch handeling. We don't find any annoucement about this kind of change in the Release Note. Please have a look on the attached screenshots.

We want to rollback our system to SP05 and probably patch to SP08. Could someone tell me whether this problem exist in SP08 ?

Any help will be appreciated.

best regards,

Hai