The latest version of the uCMJ kernel, version 0.9.7, is now available for the Raspberry Pi.
ucm is a Linux kernel with a focus on security and privacy.
It was originally released in 2014 as a kernel for the Red Hat Enterprise Linux Enterprise Server (RHEL) and the Ubuntu Linux distribution.
uCMj is an updated version of ucm.
The latest version is available for free download and can be downloaded from the Raspberry PI website.