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Release notes for Optimizely CMS and Customized Commerce updates

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This topic lists Optimizely updates, delivered as NuGet packages and services. You decide which updates apply to your project.

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  • Bug – Display bug fixes.
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Area ID Type Description Released
CMS-9761
  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

Workaround
Add the following AppSettings to the web.config.

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

Reported through
https://swapcode.wordpress.com/2018/02/16/no-logs-after-upgrading-episerver-logging/

EPiServer.Logging.Log4Net 2.2.2; (Or a related package);
Feb 19, 2018
CMS-9555
  Initialization module using log4net directly disables logging
  1. Add the following intialization module:

        [InitializableModule]
        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.

EPiServer.Logging.Log4Net 2.2.1; (Or a related package);
Feb 01, 2018