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Changes in EPiServer.Logging.Log4Net

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Area Id Type Description Released
  Log4Net logging stops working in Release mode

All log4net logging stops working when running in release mode. Only affects EPiServer.Logging.Log4Net v2.2.1

Add the following AppSettings to the web.config.

    <add key="log4net.Config" value="EPiServerLog.config"/>
    <add key="log4net.Config.Watch" value="True"/>

Reported through

Fix Version/s: EPiServer.Logging.Log4Net 2.2.2;
Feb 19, 2018
  Initialization module using log4net directly disables logging
  1. Add the following intialization module:

        public class AA : IInitializableModule
            private static readonly log4net.ILog _log = log4net.LogManager.GetLogger("test");
            public void Initialize(InitializationEngine context)
            public void Uninitialize(InitializationEngine context)

EXPECTED: Logging works
ACTUAL: Logging stops working

Note: Sometimes for this bug fix to take affect you have to clear "Temporary ASP.NET Files", ie C:\Windows\Microsoft.Net\Framework64\v4.0.30319\Temporary ASP.NET Files\

WORKAROUND: An easy fix is to use namespace EPiServer.Logging.Compatiblity instead of log4net, to make sure log4net can be safely initialized from CMS instead from a custom initialization module.

Fix Version/s: EPiServer.Logging.Log4Net 2.2.1;
Feb 01, 2018
  Log4Net provider CMS 10 compatibility

Updated version range to support EPiServer.Framework 10.0

Fix Version/s: EPiServer.Logging.Log4Net 2.1.0;
Oct 23, 2016