To start with this site is mostly about sample code for the .Net SDK. It may become more than this depending on interest and time.
The sample code in this site should build against the current release of Content Manager (CM) (as at the time of writing 9.0). In general most code should also work with older versions of CM, maybe with a few edits. To change CM version replace Samples/CSharp/lib/HP.HPTRIM.SDK.DLL.
The .Net SDK documentation is available for version 83 and 90.