I think ServiceStack.Logging.Log4net will be ported when log4net be officially released on nuget. What I see they removed getting logger by name from API and this can raise some issues after porting, but need to try it first to say more precisely. Anyway @mythz makes final decision.
Log4Net have got only minor improvements/bug fixes for last 10 years, so the lack of contributors it’s not only last time issue of log4net. To be continue be good logging framework they need to found a way to quick respond to community requests.
Hey, we don’t intend to add any .NET Logging libraries for .NET Core as we’re just forwarding all logging calls to the .NET Core logging abstraction so you will only need to configure logging in 1 place using .NET Core’s abstraction and logging adapters and it will apply to the entire App (i.e. .NET Core + ServiceStack).