for information that describes the changes in Version 5 Release 4 Modification 0 (V5R4M0) that could affect your programs or server operations. This information helps you to prepare for changes on your current server and to use the new release. Refer to the Memo to users for information that describes the changes in Version 5 Release 4 Modification 0 (V5R4M0) that could affect your programs or server operations. This information helps you to prepare for changes on your current server and to use the new release.