I’m not sure it’s an exact match, but SRD 5.1 was published around the same time as the PH accrued the “This printing includes corrections to the first printing” message in the front matter.
They both contain the corrections from the previously-published errata.
So if you will, if your PH has that message, and it probably does, you’ve probably been playing 5.1 for a while now.
This can happen with new players who are native English speakers too, as D&D has a fair deal of vocabulary not everyone knows. Words like charisma and melee really got popularized by D&D.
Deep cut here: When I was a kid (ages past) and first heard friends talk about D&D, I thought there was a lens to keep you on the border. And without it, you might go straight Into The Unknown.