OpenGL Samples Pack 4.1.6.0 reaches a total of 100 OpenGL 2.1 to 4.1 samples. Beyond few new samples, the major change is the used of ARB extensions released with OpenGL 4.1 but that works on OpenGL 3 hardware.
Many samples have been updated including ogl-410-debug-output which features GL_ARB_debug_output. This extension provides (finally!) a great mechanisium to debug an OpenGL software. The new samples include one featuring the sync object, one featuring OpenGL 3.0 alpha test (deprecated in OpenGL 3.1) and one featuring the GLSL discard command for alpha test.
Like usual, the OpenGL Samples Pack supports Visual Studio 2008 and 2010, 32 bits and 64 bits builds through CMake.