Orion SDK 2.2 has been released. The main feature in this release is smart autocomplete in SWQL Studio, but there are also various minor bugfixes and improvements.
You can download the installer from GitHub: Release v2.2.54 · solarwinds/OrionSDK · GitHub
You can also install it from Chocolatey (Chocolatey Gallery | SolarWinds Orion SDK 2.2.54 ) using "choco install orionsdk"
These tools are compatible with all of the same SolarWinds products that the previous release was, so you should have no fear of upgrading. On the other side, Orion SDK 2.1 and several previous releases are compatible with the latest 2017 SolarWinds products, so don't feel like you need to upgrade the Orion SDK just for compatibility.
If you find bugs or need a feature in the tools, please open an issue on GitHub: Issues · solarwinds/OrionSDK · GitHub