IMHO: after 3.5, we are clearly in the next iteration of the language.
After 3.4, which was a stability release. The async stuff and the beginnings of optional typing went in at 3.5. Numbering probably should have gone from 3.4 to 4.0.
After 3.4, which was a stability release. The async stuff and the beginnings of optional typing went in at 3.5. Numbering probably should have gone from 3.4 to 4.0.