...
I'd still say that Patchurday still applies to the larger, more visible updates to the EC.
Mini-patches like today, not so much, but the one last week or so that did several UI changes would count, as would one (assuming it ever happens) that introduced a significant upgrade to the graphical resolution/quality.
Patchurday basically has to give the impression of visible progress, so still valid, just not used nearly as much anymore.