We’ve added a new feature to the Visual Studio 2008 documentation to help you easily see when changes have been made in a topic. If a topic has been updated since its initial release (November 2007, in the case of Visual Studio 2008), you’ll see an updated date at the top of the topic. If you scroll to the bottom of the topic to the Change History section, you’ll see a table that lists the date of the change, a description of what change was made, and a reason for the update, such as SP1 feature change, Customer feedback, Content bug fix, or Information enhancement.
For example, if you look at the topic, How to: Target a Specific .NET Framework, you'll see the Updated date is July 2008 under the title:
. . . and you'll see a change table at the bottom that describes the change and reason for the change:
This is useful if you want to search the MSDN Library for a list of topics that have been updated in Visual Studio 2008 SP1 (by searching for the string "SP1 feature change."). Also, if we've changed a topic based on feedback that you've sent us, we'll add an entry to the Change History table, indicating that the reason is due to "Customer feedback."