IP17.0 IRM (Pre Merge DB related changes)

Hi all,

Want to know if we still need to change db param for IP16.13 to IP17.0 (IRM) as pre merge tasks :-

ALTER SYSTEM SET DB_CACHE_SIZE = 394264576;

alter session set sort_area_size=1524288;

alter system set UNDO_MANAGEMENT='MANUAL' scope=spfile;

ALTER SYSTEM SET OPEN_CURSORS=5000;

CREATE ROLLBACK SEGMENT segmnt_sbl_ip15 TABLESPACE  SIEBEL_DATA STORAGE (INITIAL 20K NEXT 40K MINEXTENTS 2 MAXEXTENTS 50);

ALTER ROLLBACK SEGMENT segmnt_sbl_ip15 ONLINE;

alter system set NLS_SORT='BINARY' scope=spfile;

alter system set SORT_AREA_SIZE=1524288 scope=spfile;