This new Kernel 5.0 version is a long-term release and will be supported for 6 years, earlier all Linux Kernel versions were supported for 2 years only.
One important thing to consider is the life cycle of a kernel version – if the version you are currently using is approaching its end of life, no more bug fixes will be provided after that date. Most modern distributions provide a way to upgrade the kernel using a package management system such as yum and an officially-supported repository.
GRUB_TIMEOUT=5 GRUB_DEFAULT=0 GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX="lv=centos/root lv=centos/swap crashkernel=auto rhgb quiet" GRUB_DISABLE_RECOVERY="true" Generating grub configuration file ...
Once the installation is complete, just restart your computer.
When it boots, select the new kernel from the GRUB menu.
It avoids having to reload the favicon every time for those that clear their history after every session and don't have a site bookmarked but visit it often.. While not perfect FF favicon handling is quite robust.
Some sites load favicons using old html methods and some sites load multiple favicons by examining aspects of the user (e.g., browser). The reason for the time delay from what I've read is to improve the performance of the browser. I believe the reason it isn't updated is he visits the site quite often resetting the favicon expiration time and, even though he deletes history, there can be up to a 24 hour delay before the actual favicon is removed from places.sqlite.