Yesterday I got the system warning from the Updater that there's an important security update, and I OKed it and post factum I realized that it was actually an automated kernel upgrade. I also keep on getting messages from the system that I can upgrade to 16.04, but I choose not to for now and one of the main reason is that I'm afraid that PHP7 (which is the default for 16.04) won't do any good to my Joomla script that is hosted on a LAMP stack. Not the Joomla itself, which is compatible with PHP7, but what comes with it together. I checked and I'm still on 14.04, PHP 5.5 which is good. Now there are my couple of questions, regarding the situation:
1) What's the advantages of running 14.04 specifically on a new kernel version?
2) Do I have systemd? I think I don't, but I'm not sure. But what I did notice is that now I don't have this boot issue that kinda corrected itself after the kernel upgrade. I mean, I used to have this annoying problem of system not booting properly the first time I turn on the PC. Only after the reboot, I used to get to the Ubuntu login screen. The first time the system used to be dropped into a BusyBox shell environment. So could there be a direct connection between boot process and the new kernel? Does a kernel upgrade can really change it? So far it looks like it, though I've only been booting the system a couple of time, so it might be too early to tell.