CA1 Requirement for zOS 2.3 Upgrade

Document ID : KB000093267
Last Modified Date : 14/03/2019
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For upgrading to z/OS 2.3, what PTF's do we need and where can we find further information about them?
Before upgrading to z/OS 2.3, the PTF's below need to be applied. 

+RO94173 +RO94642 

Please visit the compatibility matrix for CA 1 below:

1. Once you click the link, find CA 1 14.0.
2. Under column "z/OS V2R3" for CA 1 14.0, click "PTFs" and "Additional Information".