Changeling now lets you put +3 to any stat.
I think I'm starting to get it now. These optional race rules are a bit like the optional rules in the DMG.
Because we don't have to use them they don't have to be good.
I believe that depends on now, IIRC, you encounter somebody who is dead set on enforcing the Eberron errata where they changed that. unless I misread that when I checked it out.Changeling now lets you put +3 to any stat.
I'd likely allow it too since variant human cam still take a half feat that adds to their +2, but wotc has this thing about every race but a couple having a half feat worth of stuff & issued errata to "fix" itI believe that depends on now, IIRC, you encounter somebody who is dead set on enforcing the Eberron errata where they changed that. unless I misread that when I checked it out.
Me? I'd still allow it.
Nope, changed in most recent errata.Changeling now lets you put +3 to any stat.
Tasha's introduced the ability to swap racial +N stat bumps for some other stat among other things to radically change which races can work for what classes. skillA for skillB, armor or simple weapon for Simple/martial weapon or tool, Martial weapon for Simple/martial weapon or tool, & toolA for toolB are useful sure, but none of those things are likely to make anyone suddenly decide race:class combo is suddenly great. Missing from that list are cantrips, presumably because eldritch blast shouldn't be a cantrip
By default mountain dwarf gives +2 con, poison resist, darkvision, battleaxe, handaxe, throwing hammer, and warhammer proficient, +2 strength, light & medium armor proficient. The weapons are fairly useless to a caster so convert to an easy 4 maybe 5 skills depending on if you can convert darkvision to a skill or not, two different +2 ability scores, along with light/medium armor proficiency most casters other than cleric will lack one or both of.
There are a few races that give a cantrip or some limited one off spells that are rarely top shelf spells & having spell slots doesn't mean you can use those slots on those spells. The dragonmark races add a bunch of spells to your class's spell list but you still need to learn/prepare them normally keeping them from really competing. What it really makes obvious is the lack of things like brutal critical/relentless endurance or even bugbear's reach level transformative racial stuff for casters. Goblin fury of the small could be awesome but exempts itself with1/long res
Anything that I'm missing?

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