The latest version, 4.5, released in November 2012, allows for profiling of .NET 2.0, 3.0, 3.5, 4.0 or 4.5 managed code as well as
Silverlight apps. The source code was originally included under the
Microsoft Limited Reciprocal License (MS-LRL) and hosted on
CodePlex. It is now available on
GitHub under the
MIT License. CLR Profiler is an intrusive tool; seeing a 10 to 100x slowdown in the application being profiled is not unusual. Therefore, it is not the right tool to find out where time is spent – use other profilers to profile the CPU usage of an application. ==Releases==