Go 1.19 was released last week and we should begin work on supporting it.

Skimming through the release notes, the following changes seem relevant to us:

• The sync/atomic package defines new atomic types Bool, Int32, Int64, Uint32, Uint64, Uintptr, and Pointer.

I hope that supporting it won't be too much work, although I suspect that generics might have started infiltrating the standard library, in which case we'll have to double down on #1013 first.