Spectral 7.x Upgrade Guide
Spectral 7.x is completely backwards-compatible with Spectral 6.x. You can safely upgrade your version of Spectral from 6.x to 7.x without changes to your custom component code.
The focus of Spectral 7.x was improved instance deployment. You can now create Data Sources. Similar to triggers or actions, data sources use connections to reach out to third-party APIs to gather data. In this case, they gather data to dynamically insert into config variables in an instance configuration wizard.
Read more about the instance configuration wizard here, and about writing your own data source here.