= [5.1.5.1] 2026-06-22 =
* Security – Tightened security around assignment file uploads.
= [5.1.5] 2026-06-10 =
* Fix – Resolved an issue where expanded lesson items in the Focus Mode sidebar were not fully rendering when the sidebar was initially collapsed.
* Fix – Resolved an issue where students could reach topics and quizzes that belong to a draft lesson, either through the course navigation or a direct link.
* Fix – Resolved an issue where the Resume Course button could redirect students to a draft or unavailable step, resulting in a 404 error.