Staff news: This article will contain a summary of useful updates you may see in your Blackboard Ultra courses from Friday 4th September 2026.
Restrict accepted file types for assignment submissions
You can now specify which file types tol accept for file submissions on assignments. Students are informed of any restrictions before submitting and receive an warning message if they attempt to upload a file type that is not permitted.
When configuring an assignment with file submission enabled, you can restrict accepted file types in two ways:
- Select from a list of common permitted file types, including Word, Excel, PowerPoint, and ZIP formats.
- Enter custom file extensions manually.
If a custom extension conflicts with a system-level restriction, an error message appears and the setting cannot be saved.
You can modify file type restrictions after students have started submitting. Existing submissions remain gradable, and students with drafts in progress can still submit.
