Microsoft published the documentation for Windows 7 and Windows Server 2008 R2 Service Pack 1

The following documentation for Windows 7 and Windows Server 2008 R2 Service Pack 1 is provided here:

Deployment Guide for Windows Server 2008 R2 with SP1 and Windows 7 with SP1
Hotfixes and Security Updates included in Windows 7 and Windows Server 2008 R2 Service Pack 1
Installing Windows Server 2008 R2 with SP1 (“readme”)
Release Notes for Windows 7 with SP1
Release Notes for Windows Server 2008 R2 with SP1
Notable Changes in Windows 7 and Windows Server 2008 R2 Service Pack 1

  Documentation for Windows 7 and Windows Server 2008 R2 Service Pack 1