- Make SerializedHubMessage and SerializedMessage
public
- Made HubConnectionStore public
- Move SendUtils and Utils to the internal folder
- Make Microsoft.AspNetCore.Http.Connections.Common/Internal public.
- Move InvocationRequest to internal folder
- Don't allocate when enumerating connections
- Don't allocate tasks unless we truly go async
- Don't get the timestamp, just write the pings always (if there's no ongoing write)
- Track the time since last keep alive write instead of the last write
- ValueTask all the things!
- Renamed HubConnectionList to HubConnectionStore