While my full campaign play uses Level Up, I am in a game with my kids and am planning to run another, and those games use pre-Tasha's 5.0. This is mostly to keep choices to a manageable level for new players who are used to video games over pen and paper. That said, my daughter in particular is very excited about D&D and could probably handle and appreciate more complexity, so I have hope I will be able to introduce her to my preferred version of 5e moving forward.Ok, you're not upgrading to D&D 2024. You also aren't interested in moving to a different 5e system. You're sticking with D&D 5e. But what version?
For this poll, there are two categories: I'm naming them 5.0 and 5.1. The dividing line is Tasha's Cauldron of Everything. I'll explain both groups below.
5.0: 2014 PHB, Xanathar's Volo's and Tome of Foes. Racial ASI. Class features per PHB. No bonus feats. Artificer class (from Eberron). Subraces.
5.1: Post Tasha's. Alternate class features. Customize your Origin. Backgrounds give bonus feat at level 1. Monster of the Multiverse style races.
Obviously, some games may use elements of 5.1 and not others (for example, using the alternate class features, but opting for 5.0 racial ASI). For this purpose, if you are use the bulk of the rules from 5.0 with only a few additions, use 5.0 but if you are mostly allowing the post-Tasha additions, use 5.1.
I'm curious how many holdouts are going all the way back to the beginning and how many are just not progressing to 2024 (5.2 for this purpose).
I do the same thing for my main game, but use A5e as my base instead of the CC 5e SRD.I'm using the CC 5E SRD as the base, but with stuff added from whatever source I like. A5E, ToV, WotC, homebrew, blogs.
So very much post Tasha's, but nothing whole. A curated selection.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.