Peoplesoft HCM9.1 Upgarde -  

1. Date Time Stamp Issues- OracleDescriptor=1 or Cast or To_date or To_Char

2. Funclib_absence Record is converted to Funclib_gp_abs

3. Grou_id configuration issue-for current Calender Group - onebrace is coming extra.

4. Style Sheet - new style sheet is PSSTYLEDEF_SWAN