A lot of changes has been made to the Verthash GPU miner:
New pipelines for CUDA and OpenCL backends (better performance per watt, reduced memory requirements etc)
.New build system (removed/changed several dependencies — this will simplify compilation for Windows platform)
.New configuration options and more error checks
and New profiler.The redesign of Vertcoin(dot)org is still hot, the simplicity of the new design will make it easier for new users to understand.