Solaris 11 SRUs as applicable to preceding Solaris 11 releases
(Doc ID 1526268.1)
Last updated on OCTOBER 03, 2019
Solaris Operating System - Version 11 11/11 and later Information in this document applies to any platform.
Oracle Solaris Release Concepts
Solaris has always employed a tip-of-source-tree bug fixing policy. This enables Oracle to provide ultra-long-term support for Solaris to customers at reasonable cost.
Therefore, Solaris has always had a single contiguous customer visible bug fix delivery train for each Solaris release.
That is, there's a incremental and cumulative set of bug fixes released for the whole of Solaris 11, a separate set for the whole of Solaris 10, a separate set for the whole of Solaris 9, etc.
Solaris Updates are periodically released to provide feature enhancements, support for new hardware, and additional bug fixes. For example, Oracle Solaris 11.1.
Typically, new customers will install the latest Solaris Update release on new systems. Existing customers will typically install the latest bug fix deliverable on existing production systems.
Subsequent bug fixes are always made on top of the latest Update release as it is now the tip-of-source-tree. These bug fixes can be installed on all preceding Update releases as well. This effectively brings existing systems up to a common baseline, with the same feature level as systems newly installed with the latest Update release.
Nothing has changed in this regard in Solaris 11 compared to earlier releases such as Solaris 10.
The only difference is that the process is a little more transparent in Solaris 11.
The Solaris Binary Compatibility Guarantee provides assurance that applications will work from one Update release to the next, as well as assurance that applications will continue to work between releases such as Solaris 8, 9, 10, and 11. If an old interface is to be deprecated, at least 1 year's notice is given in the release notes of the Update release.
Let's look at it in a little more detail:
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