Intel Core is an eighth-generation microarchitecture, and the most recent Intel desktop CPUs are 14th gen Core processors. So the current generation is "8.14" as it were; the basic architecture is still more or less the same as it was 15 years ago.
12th gen Core processors raise a question should change in multi-core architecture like bringing in multiple types of cores be considered drastic enough change?
Wikipedia is the best source for this as its confusing unless you deal with it every day. FWIW Raptor Lake (https://en.wikipedia.org/wiki/Raptor_Lake) is Intel's codename for its 13th & 14th generation of Core processors, and the one after will be called Arrow Lake and Meteor Lake (depending on if desktop or mobile).
The next ones are Sierra Forest and Granite Rapids on the server side, Arrow Lake on the desktop and Lunar Lake on the laptop.
And then comes Panther Lake supposedly next year which is both desktop and laptop and Gelsinger admitted betting the company on the 18A process it is using.
With the i3/i5/i7/i9 naming convention I have lost track Unless i3.1s have essentially the same architecture as i3.xxx newest.