A customer once said to me that "bad news, delivered early, is relatively good news, as it enables me to plan for contingencies".
That need to manage expectations has stuck with me over the years.
And in that spirit, we issue Docs detailing known issues with Solaris 11 SRUs (Doc ID 1900381.1) and Solaris 10 CPU patchsets (Doc ID 1943839.1).
Many issues only occur in very specific configuration scenarios which won't be seen by the vast majority of customers.
A few will be subtle issues which have proved hard to diagnose and hence may impact a number of releases.
But providing the ability to read up on known issues before upgrading to a particular Solaris 11 SRU or Solaris 10 CPU patchset enables customers to make more informed and hence better decisions.
BTW: The Solaris 11 Support Repository Update (SRU) Index (Doc ID 1672221.1) provides access to SRU READMEs summarizing the goodness that each SRU provides. (As do the bugs fixed lists in Solaris 10 patch and patchset READMEs.)
For example, from the Solaris 11.2 SRU10.5 (184.108.40.206.0) README:
Why Apply Oracle Solaris 220.127.116.11.0
Oracle Solaris 18.104.22.168.0 provides improvements and bug fixes that
are applicable for all the Oracle Solaris 11 systems. Some of the
noteworthy improvements in this SRU include:
- Bug fix to prevent panics when using zones configured with exclusive
IP networking, and DR has been used to add and remove CPUs from the
domain (Bug 19880562).
- Bug fix to improve NFS stability when under stress (Bug 20138331).
- Bug fix to address the generation of FMA events on the PCIEX bus on T5-2 (Bug 20245857).
- Bug fix to improve the performance of the
zoneadm listcommand for systems running a large number of zones (Bug 20386861).
- Bug fix to remove misleading warning messages seen while booting the Oracle VM Server for SPARC guests (Bug 20341341).
- Bug fix to address NTP security issues, which includes the new slew always mode for leap second processing (Bug 20783962).
- OpenStack components have been updated to Juno. For more information, see OpenStack Upgrade Procedures.
- The Java 8, Java 7, and Java 6 packages have been updated. For more information, see Java 8 Update 45 Release Notes, Java 7 Update 80 Release Notes, and Java 6 Update 95 Release Notes.