Rolling log4net logs by Date

Simple example (max. 180 days backwards):

<appender name="AuditFileAppender" type="log4net.Appender.RollingFileAppender">
    <file value="d:\audit_logs\log.txt_" />
    <appendToFile value="true" />
    <rollingStyle value="Date" />
    <param name="maxSizeRollBackups" value="180" />
    <param name="StaticLogFileName" value="false"/>
    <param name="DatePattern" value="dd-MM-yyyy"/>
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%message%newline" />
    </layout>
  </appender>