Daily digest v1.6 changes:
Fixed undefined variable condition.
Daily digest v1.5 changes:
Fixed issue with empty result variable.
Daily digest v1.4 changes:
Updated Subscribe / Unsubscribe page.
Daily digest v1.3 changes:
Now properly bypasses accounts without an email address.
Daily digest v1.2 changes:
Added unread to thread link.
Daily digest v1.1 changes:
Options page has new feature called New posts.