1 New Features and 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 5 (UEK R5) is a heavily tested and optimized operating system kernel for Oracle Linux 7.5 and later on the x86_64 and 64-bit Arm (aarch64) architectures. The release is based on the mainline Linux kernel version 4.14.35. This release also updates drivers and includes bug and security fixes.

Oracle actively monitors upstream check-ins and applies critical bug and security fixes to UEK R5.

UEK R5U3 uses the 4.14.35-1902.300 version and build of the UEK R5 kernel, which includes security and bug fixes, as well as driver updates.

UEK R5 uses the same versioning model as the mainline Linux kernel version. It is possible that some applications might not understand the 4.14 versioning scheme. However, regular Linux applications are usually neither aware of nor affected by Linux kernel version numbers.