There are a bunch of great new CLR v4-related video interviews up on Channel9. In particular:
- Jon, Thomas and Dave from my team (CLR diagnostics) discuss the advancements in debugging and profiling APIs in v4
- Simon and I discuss in-process SxS (ability to have multiple CLRs loaded in the same process). You may have noticed the lack of diagnostics blog entries from me lately - that's because I've mostly been spending my time helping out with this important feature.
There are a bunch of other ones that look good (eg. "Type equivalence" and "No-PIAs" are closely related and an interesting discussion), but I haven't gotten a chance to watch them yet.