Applying and removing maintenance on z/OS
We can install new releases of IBM MQ to update IBM MQ to a new maintenance level.
About this task
If your enterprise is using the Continuous Delivery release (CD release) model, we can select which updates your
enterprise requires as each CD release
replaces the prior one for that version of IBM MQ.
You apply Program Temporary Fixes (PTFs) to the installed code if your
enterprise is using the Long Term Support (LTS) release model.
For more information, see IBM MQ Release Types.
On the z/OS Long Term Support release ( LTS release) model, maintenance is supplied as Program Temporary Fixes, (PTFs), which are applied and removed using SMP/E. PTFs are specific to a particular set of libraries corresponding to specific release level.
Apart from any exceptions documented with the PTFs, PTFs do not change the correct operation of IBM MQ, and are reversible. Nonetheless, we must check that the fixes have not changed the operation of critical programs unexpectedly.
Applying PTFs does not change the version, release, or maintenance level of the code. No queue manager migration is required after applying maintenance. PTFs are grouped into Recommended Service Updates (RSUs) that have been tested together in a Consolidated Service Test (CST); see Consolidated Service Test and the RSU.
PTFs that apply to a category of software fixes might be grouped together and identified using a fix category. For more information, see IBM Fix category values and descriptions.
Parent topic: Applying maintenance to IBM MQRelated concepts