"NET Framework 4.5 had its CTP released in Build, and RTM is coming next year. The key improvement areas are asynchronous programming, performance and support for Windows 8/WinRT – but worry not, it’s not all about those new thingies.
Instead of just listing it all out, here’s a poster you can hang on your wall and explore. The ideal print size is a landscape A3. If you want it all in writing, follow the links at the end of this post. Click on the image for a larger version.
[GD: For the full sized version, click through and then click on the image. I didn't want to leach his traffic...]
I thought this a very cool snapshot of what's coming (so far) in .Net 4.5.
What is .Net 4.5 as it relates to .Net 4.0 you ask? Here's a very brief snip on just that, "What Is The .NET Framework 4.5?" (in short .Net 4.5 is an additive addition, a replacement, a fully backward compatible upgrade, an in-place replacement to .Net 4)