The ISA Server 2006 SP1 was release today (couple of minutes ago) and you can download from the link below:


We do have some good articles out there already that talks about the functionalities of this release, review some of them:


Jim Harrison reveals ISA Server 2006 SP1

ISA Server 2006 SP1 Demos by Yuri Diogenes

Your New ISA Firewall: ISA 2006 Service Pack 1 (Part 1) by Tom Shinder

ISA Server 2006 Service Pack 1: New features and enhancements by Marc Grote