Am I seeing things, or did they improve the graphics engine and textures with today's update?

I read through the patch notes, and there was no mention of any engine improvements. And while I'm probably imagining things, the textures seem to be noticeably a lot sharper today than previously. Notably, grass textures seem far less shimmery.

I remember them mentioning switching to the new BC7 texture format with the DX11 transition, and afaik they've already been using BC7 for SOTO and Janthir content. At the time they mentioned not being sure if they would be backporting it to older content, but maybe they did? Or maybe this is something else entirely, not limited to me actually going nuts.

Anywho, sorry if I'm wrong and imagining things. Cheers.