1 New Features, Bug Fixes and Notable Changes
Important:
The software described in this documentation is either in Extended Support or Sustaining Support. See Oracle Open Source Support Policies for more information.
We recommend that you upgrade the software described by this documentation as soon as possible.
The Unbreakable Enterprise Kernel Release 4 (UEK R4) is Oracle's fourth major release of its heavily tested and optimized operating system kernel for Oracle Linux 6 Update 7 or later, and Oracle Linux 7 Update 1 or later, on the x86-64 architecture. It is based on the mainline Linux kernel version 4.1.12.
UEK R4U7 uses the 4.1.12-124.14.1 version and build of the UEK R4 kernel, which includes security and bug fixes, as well as driver updates. This kernel has been tested within environments running the latest available Oracle Linux releases: Oracle Linux 6 Update 8, Oracle Linux 6 Update 9, Oracle Linux 7 Update 4 and Oracle Linux 7 Update 5.
Oracle actively monitors upstream check-ins and applies critical bug and security fixes to UEK R4.
Important:
Run the yum update command regularly to ensure that the latest bug fixes and security errata are installed on your system.
UEK R4 uses the same versioning model as the mainline Linux kernel version. It is possible that some applications might not understand the 4.1 versioning scheme. However, regular Linux applications are usually neither aware of nor affected by Linux kernel version numbers.