who_need_help/priv/repo/migration_application_compatibility.tsv

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# migration_version application_rollback_policy reason
20260722110837 forward_only hidden requests can store no coordinates and old code requires a point
20260722123052 application_safe additive partial geography index
20260722190604 forward_only assignment history permits rows the old single-assignment model cannot interpret safely
20260723015032 application_safe additive request-helper lookup index
20260724161628 application_safe additive support conversation and status-history tables
20260731230828 forward_only pending support verification status is not understood by older releases
20260801002933 forward_only staff roles move out of the removed users.role column into role assignments
20260801123806 application_safe additive concurrent user directory search indexes
20260801141743 application_safe additive concurrent operations queue search indexes
20260801200302 application_safe additive generated public discovery coordinate columns
20260812120611 application_safe dropping the delivery-channel check allows inbox-only subscriptions that old code can still read safely
20260813194249 application_safe additive nullable inbound-provider identity columns and a partial unique index are ignored by the previous application
20260827173037 application_safe additive discovery rollup tables and maintenance triggers are ignored by the previous application while continuing to follow its writes
20260827180241 forward_only pending lifecycle uniqueness can reject duplicate account access or deletion requests that the previous application may still attempt to insert
20260827225430 application_safe replacing rollup trigger functions preserves the existing schema and application contract while serializing concurrent counter inserts