03/01/14 Canvas Production Release Notes Featuring the Learning Mastery Gradebook
02/21/14 Canvas by Instructure (Android) 2.3 Release Notes Featuring Groups and Multi-user Sign-in Functionality
02/08/14 Canvas Production Release Notes Featuring Gradebook Notes and Select All Conversations
Canvas will disable quiz regrade when instructors remove a question answer from a quiz with student submissions. The quiz regrade feature was designed to assist instructors in changing existing answer options within active quizzes, not removing them. Therefore, if an instructor removes an answer option from a quiz question, Canvas will display a warning that removing the option will disable the regrade feature.
01/18/14 Canvas Production Release Notes Featuring Concluded Course Quiz Restriction