https://arstechnica.com/gadgets/2018/08/intel-launches-whiskey-and-amber-lakes-kaby-lake-with-better-wi-fi-usb/

Intel has launched its latest mobile processors: six new chips designed for Ultrabooks and other thin-and-light systems. Three 15W U-series chips are codenamed Whiskey Lake, and another three 5W Y-series parts are codenamed Amber Lake.

The CPU parts of these new processors are the same Kaby Lake Refresh parts as Intel launched a year ago—just with slightly tweaked clock speeds. The i7-8565U, for example, at 1.8/4.6GHz, is just a slightly uprated replacement for the i7-8550U at 1.8/4.0GHz. Due to this similarity, the new parts retain the "8th generation" branding of last year's parts. This similarity also means that the new chips don't include hardware fixes for the Meltdown or Spectre issues.