New in IIS 7.5

IIS 7.0 and IIS 7.5 are together known as IIS 7; however, IIS 7.5 and Windows Server 2008 R2 include several new features not found in IIS 7.0:

Microsoft® ASP.NET runs on Windows Server 2008 R2 Server Core installations.
Some of the extensions available to be added to the IIS 7.0 platform are integrated into the IIS 7.5 platform, including:
FTP publishing.
Web-based Distributed Authoring and Versioning (WebDAV) publishing.
Windows PowerShell™ snap-in for IIS.
IIS Administration Pack modules.
IIS 7.5 includes configuration logging and tracing (IIS 7.0 does not include any built-in tracing mechanisms for configuration changes).
IIS 7.5 includes the Best Practice Analyzer, an automated tool for helping to ensure compliance with security best practices.