v4.0.0
- #60 - project/codebase maintenance (@SimonCropp)
- #63 - XDOC improvements (@nblumhardt)
- #66 - rewrite to remove all blocking/use async APIs entirely (@nblumhardt)
- breaking - target
net462; netstandard2.0; net6.0
- port to System.Threading.Channels
- remove previously-deprecated inheritance-based API
- breaking - target