The community release notes have summaries at the end for new and deleted system preferences and new authorised values and letter codes but none for schema changes. A list of new/deleted tables and one for new/renamed/deleted columns in tables would be useful. For example, issues.renewals became issues.renewals_count in 21.11 but this change was buried in bug 30275 (and reports broke as we missed mention of the change). And the schema change in bug 26057 altered the meaning of ‘missing in transit’ as we had defined it in our MIT reports (so they broke too). Schema changes are now included in our ‘upgrade pain-points’ and we will look very closely at them. A summary of the changes would be very useful.