The following PTFs should be applied by all users –
PTF Issue Addressed
VS550039 PRG006 and CFR001 ABENDs during license message generation if running on z/VM 5.4 and z/VM 6.1 (i.e., within 30 days of license expiration)
VT550035 Infinite loops in RVTIOR on z196/z114 processors
VP550032 Infinite loops in RVPIOR on z196/z114 processors
Unpatched systems are vulnerable to system-level outages. All users are therefore strongly encouraged to apply these updates as soon as possible.