What steps are required when falling back to a previous Db2 version for the Database Management Solutions for Db2 for z/OS tools?

Products

• Database Management for DB2 for z/OS - Administration Suite
• Database Management for DB2 for z/OS - Performance Suite
• Database Management for DB2 for z/OS - Recovery Suite
• Database Management for DB2 for z/OS - SQL Performance Suite
• Database Management for DB2 for z/OS - Utilities Suite
• DATABASE MANAGEMENT SOLUTIONS FOR DB2 FOR Z/OS

Issue/Introduction

What are the necessary steps or processes during fallback from one Db2 version to another? 
Does the Database Management for Db2 for z/OS Post Install Object Compare task need to be run?

Resolution

The following steps are necessary when falling back from one Db2 version to another:

The highlvl.CDBAPARM SETUPxx member must be updated to reflect the correct DB2 SSIDMODE and SSIDVER. 
Also make certain the Db2 load libraries are correct. The Post Install bind products task must be regenerated and executed.
The bind job generation must be done AFTER the SETUPxx member has been updated to reflect the correct mode and version of DB2.

The Object Compare task does NOT need to be run as the product are enabled to run on multiple Db2 versions, it is not necessary to go through this step.
There will be no changes made to the objects when falling back.