Upgrade Content IT Pros may not have seen

Given the upgrade of WSS and MOSS may contain some customizations, IT Pros that are looking through TechNet may miss some great content that's actually in the SDK, something Server Admins don't usually think about cracking.  The SDK has a lot of relevant content for IT Pros, so don't dismiss it.

Here's the key content I wanted to expose you to on this topic from the WSS 3.0 SDK.

Upgrade Overview

Site Versioning and Upgrade

Architectural Approaches to Upgrade

Using the Object Model to Upgrade

Sample Outline for Upgrade Actions

Upgrade Definition Files

Upgrade Definition Schema

Upgrading Pages and Web Parts

Other MSDN Content on Upgrade:

Migration and Upgrade Information for SharePoint Developers (tons of resources)

SharePoint Server 2007 SDK

WSS 3.0 SDK