.NET 4, or .NET Framework version 4.0, was released on April 12, 2010.
Here are select books about .NET 4.
2020-06-18
Framework Design Guidelines
Edition: 3
Series: Microsoft .NET Development
Authors: Krzysztof Cwalina, Jeremy Barton, and Brad Abrams
Publisher: Pearson
ISBN: 9780135896464
Type: Book
Format: Hardcover
Price: US $65
On sale @ Amazon.
Shop @ Pearson.