Buggy kernel update?

Today, both my computers got a kernel update and both are dead in the water, unless I boot a previous kernel.  This is on a desktop system, with Gigabyte mom board and a ThinkPad.  They lock up immediately after the boot menu, requiring killing the power to clear. Has anyone else noticed this? BTW, in the twenty odd years I've been running Linux, this is the first time I had to resort to using a previous kernel.