In this Canvas release (February 20), LaTeX equations can be entered in any Canvas text field, and MathJax is loaded if Canvas detects an equation image added by delimited LaTeX characters.
The Rich Content Editor includes a pretty HTML editor in addition to the raw HTML editor.
For instructors, the Gradebook View menu includes the View Ungraded as 0 option, which is a visual change only and does not affect any grades. Additionally, the Gradebook importer recognizes and can apply changes for final grade override scores.
This is an abridged version of the full release notes and references. The full article can be found in the Canvas Community site.
Below is a screen cast summary of the release notes.