Logging How to Configure Microsoft.Extensions.Logging in Optimizely CMS11 Extensions.Logging de-facto logging library that class libraries should use at the very least. Where Optimizely (ex. Episerver) CMS11 (running on .NET Framework) would collide with anything from the "new world" (.NET5)?
EPiServer Injected log4net Logger Blog post is for personal reference for the cases when you need to get instance of some sort of logger from the Logging library you are using. It depends on logging library that you use but usually you may get instance of logger itself
