The Orion SDK is moving to Github at https://github.com/solarwinds/OrionSDK. Currently, that includes SWQL Studio, the PowerShell snapin, and most of the samples from the existing installable SDK package. This code is being made available under the Apache 2.0 license.
We will be moving the documentation into the Github wiki for that project. For now there is just one page, https://github.com/solarwinds/OrionSDK/wiki/Alerts, that describes the alerting entities introduced in the 2015 Orion platform releases.
Our goal is to update this more continuously and not rely on infrequent numbered releases.
Your feedback on this is welcome. How would you like to see this managed?