Umbraco-CMS/src/Umbraco.Web.UI/web.Template.Release.config

<?xml version="1.0"?>

<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <!--
    CAREFUL!
    ========
    
    ONLY edit this if a certain change NEEDS to go into the config of the 
	Umbraco RELEASE version - The version that everybody will download and use    
  -->

  <system.web>
    <trust xdt:Transform="Remove" />
    <globalization xdt:Transform="Remove" />
    <trace enabled="false" xdt:Transform="SetAttributes(enabled)" />
    <customErrors mode="RemoteOnly" xdt:Transform="SetAttributes(mode)">
    </customErrors>

    <membership>
      <providers>
        <add xdt:Transform="SetAttributes(useLegacyEncoding)" xdt:Locator="Match(name)" name="UmbracoMembershipProvider" 
              useLegacyEncoding="true" />
        <add xdt:Transform="SetAttributes(useLegacyEncoding)" xdt:Locator="Match(name)" name="UsersMembershipProvider" 
             useLegacyEncoding="true" />
      </providers>
    </membership>
  </system.web>


</configuration>