Restructure file names.
Add 'expire_users_notifications_table_tablenav' filter for adding content above the notifications table in the admin.
Handle display of notification table columns as separate methods.
Move admin styles to stylesheet into of inserting into HTML head.
Move active notification checkboxes to notifications table.
Update names of email notifications.
Expire Actions form field label is not 'for' a postcode.
Capitalise form field labels in admin.
Move email notification action to a separate set of fields when editing a user profile.
On user profile edit screen, display notifications from data rather than hardcoded fields.
Update help text to reflect recent settings UI changes.
Move notification email checkboxes back to Registered User Expiry Settings.

I forgot their purpose was to define the settings to automatically apply to registered users.
Show expired dates as red in admin.