Comment by ryanflorence

Author here.

One more time for those in the back:

v0.x > v1 Breaking changes

v1 > v2 > v3 a couple obscure breaking changes, but practically none

18 months pass

v3 > v4 New, composable design, basically a new project

v3 still maintained, 3.5 years no changes. v4 2 years, no changes.

v4 -> v5 was supposed to be 4.4, but an internal dependency '^' got us, so best choice was version bump to prevent problems.