1. Add new columns to store the timestamp and UID when closing requests:

----
ALTER TABLE PackageRequests ADD COLUMN ClosedTS BIGINT UNSIGNED NULL DEFAULT NULL;
ALTER TABLE PackageRequests ADD COLUMN ClosedUID INTEGER UNSIGNED NULL DEFAULT NULL;
----

2. Add a new column to store backup email addresses:

----
ALTER TABLE Users ADD COLUMN BackupEmail VARCHAR(254) NULL DEFAULT NULL;
----