Is there know issues when installing a z14 ZR1 with z/OS 2.3?
Are they required PTFS for compatibility with the new hardware?
All 2.3 PTFS have been applied.
Librarian does not depend on the hardware. So, there are no compatibility issues for IBM z14 processor.
Also, if the CPU serial number is changed, a new license key is required.
For further compatibility information, see hardware compatibility .