MICROSOFT IS GETTING AHEAD of itself with a beta test that goes three versions ahead of the current release.
At present, the Insider Programme is testing update 19H1 (due in the spring), but despite there being no sign of 19H2 (Autumn 2019) yet, there’s already an early build of what, as you’d guess is called 20H1 doing the rounds.
The news comes courtesy of Dona Sarkar, the boss of the Insiders, who is looking for testers already. There are apparently some aspects of 20H1 that need a longer lead time, though there’s little detail of what that means.