Codice Software has announced that the newest Plastic SCM release (3.0.13) now includes a feature for method-based history.
Using the software configuration management tool, you can now select a method within Visual Studio, right click to show the context menu, and select "method history." Plastic SCM will go through the file history and analyze the evolution of that specific method.
According to the official Plastic SCM blog, "We have the impression that 95% of the time that you go through a file’s history, the reason is to check a specific method. That’s why we came up with this new feature. In fact “method history” is one of those things we’ve always wanted to implement, but of course we had to cover the SCM basics first. But, finally, it is here ... 'Method history' is our first step into a 'programming language aware SCM': a path we will be walking during the next months. We have a bunch of ideas to combine the 'method history' parsing technology with XDiff and XMerge, to come up with a new line of Plastic SCM functionality in 2011."