API Canvas Surprise leak?

[mlewis23]

The list of API calls has grown.

Did Canvas just leak a hint of their January surprise?  I see Custom Gradebook Columns - Canvas LMS REST API Documentation and a LiveAssessments - Canvas LMS REST API Documentation which I hadn't noticed before.

[msl_adm]

I know that the Custom Gradebook Columns have been there since at least last May. I experimented with them for a little while a few months back. Not sure about the other.