Taking a closer look at the appended diff, we can notice that there are numerous x86 enhancements, a few ARM improvements, several networking improvements, especially for the IPv4 and IPv6 protocols, as well as a fix for the EXT4 file system. Best of all, there are dozens of updated drivers in Linux kernel 3.18.17 LTS, especially for things like DVB frontend devices and tuners, but also for some networking, TTY, USB, SPI, ACPI (Advanced Configuration and Power Interface), IOMMU, and HID devices.