A few hours ago the Linux kernel 4.4 LTS, but there was also an important launch, especially in the corporate environment, with the arrival of Unbreakable Enterprise Kernel (UEK) 4. This was announced by Oracle, the company that in addition to leading the development of Virtualbox y Java is also behind this launch.
For those who do not know this proposal, say that it is a major effort towards safety and stability as Oracle works to improve the performance of GNU / Linux kernel in certain aspects that are highly valued in business environments.
El Unbreakable Enterprise 4 kernel It is available and ready to be used in Oracle Enterprise Linux 6 and Oracle Enterprise Linux 7, the two most recent versions of the platform based on Red Hat Enterprise Linux, and among the novelties that it brings we can mention the well-known of add patches in real time (which comes thanks to the open source Ksplice extension).
In the words of Oracle's Michele Casey, the Oracle Linux team “is pleased to announce the general availability of Unbreakable Enterprise Kernel (UEK) version 4 for Oracle Linux 6 and Oracle Linux 7. This release, based on the line Kernel 4.1, brings interesting features and improvements developed for cloud infrastructures.
In addition to the aforementioned of the real-time patches, there is also the support for the LZ4 compression algorithm, for network batch transmissions, for low latency network polling, for using zram and zswap, and for cloud technologies featured as Xen, OpenvSwitch, Docker, LXC and VXLAN.
But this is a kernel whose main objective is to provide greater security And it does that with new features like random number system calls, kernel address space randomness, and updates to SELinux, SHA256, and SHA512.
However, the list of news is much more extensive and those who want to know them all can read the release notes, available at this link.