DotNetNuke changes in Web.Config from 4.0.3 to 4.4

I moved from DNN 4.0.3 to DNN 4.4 and noticed that there are significant web.config changes (actually as a part of 4.3 Membership Services Provider Abstraction ).

However I didn’t find any clear documentation about Web.Config changes.
From my understanding the folowing changes happened:
1. Microsoft ASP.NET  membership  defaultProvider changed from “DNNSQLMembershipProvider” to standard MS AspNetSqlMembershipProvider –System.Web.Security.SqlMembershipProvider.
2.roleManager and profile providers sections were deleted from system.web section of web.config.
3. New sections “members“,“roles“,“profiles” were added to  “dotnetnuke“ sectionGroup