This update is entirely bug fixes, concentrated on offline downloads and sign-in.

DOWNLOADS
- Tapping "Finish course download" no longer crashes when a course has gained a lecture since you downloaded it. If you were holding a partial download of Agentic AI Programming for Python or Django: Getting Started, this was hitting you every time - not intermittently.
- Downloads now stay in step with courses that change after you download them. A lecture added to a course is now downloadable instead of being silently missing from a course that claimed to be complete, and a lecture removed from a course no longer leaves you stuck at "N-1 of N" forever. Video left behind by a removed lecture is deleted and its space reclaimed.

COURSES
- Your enrolled course list no longer fails to load when course size information is briefly unavailable from the server.

SIGN-IN
- If your sign-in expires or is revoked, the app now signs you out and tells you why, instead of failing every refresh with a generic "please try again" that retrying could never fix. Previously the only way out was to guess to sign out manually from Account Details.