The current version of the Desktop SDK is 13.0.
As an alternative to Intuit’s SDK, there are third-party development tools, most of which enable you to integrate an application and QuickBooks without working with the QuickBooks SDK. For more information, see Third-party tools.
Downloading the installer
The Desktop SDK is a self-extracting installer of approximately 76.8MB. You must be logged in to your Intuit Developer account before you can download the installer or merge modules. If you are not logged in, you will be redirected to the sign-on page.
Running the installer
Next up, run through the basic steps of using the SDK with the SDKTestPlus3.