diff --git a/web/redux/persist-constants.js b/web/redux/persist-constants.js
--- a/web/redux/persist-constants.js
+++ b/web/redux/persist-constants.js
@@ -3,5 +3,6 @@
 const rootKey = 'root';
 const rootKeyPrefix = 'persist:';
 const completeRootKey = `${rootKeyPrefix}${rootKey}`;
+const storeVersion = 75;
 
-export { rootKey, rootKeyPrefix, completeRootKey };
+export { rootKey, rootKeyPrefix, completeRootKey, storeVersion };
diff --git a/web/redux/persist.js b/web/redux/persist.js
--- a/web/redux/persist.js
+++ b/web/redux/persist.js
@@ -47,7 +47,7 @@
   handleReduxMigrationFailure,
   persistWhitelist,
 } from './handle-redux-migration-failure.js';
-import { rootKey, rootKeyPrefix } from './persist-constants.js';
+import { rootKey, rootKeyPrefix, storeVersion } from './persist-constants.js';
 import type { AppState } from './redux-setup.js';
 import { unshimClientDB } from './unshim-utils.js';
 import { authoritativeKeyserverID } from '../authoritative-keyserver.js';
@@ -530,7 +530,7 @@
     (error: Error, state: AppState) => handleReduxMigrationFailure(state),
     migrateStorageToSQLite,
   ): any),
-  version: 75,
+  version: storeVersion,
   transforms: [messageStoreMessagesBlocklistTransform, keyserverStoreTransform],
 };
 
diff --git a/web/shared-worker/types/sqlite-query-executor.js b/web/shared-worker/types/sqlite-query-executor.js
--- a/web/shared-worker/types/sqlite-query-executor.js
+++ b/web/shared-worker/types/sqlite-query-executor.js
@@ -159,6 +159,7 @@
   restoreFromMainCompaction(
     mainCompactionPath: string,
     mainCompactionEncryptionKey: string,
+    maxVersion: string,
   ): void;
 
   restoreFromBackupLog(backupLog: Uint8Array): void;
diff --git a/web/shared-worker/worker/backup.js b/web/shared-worker/worker/backup.js
--- a/web/shared-worker/worker/backup.js
+++ b/web/shared-worker/worker/backup.js
@@ -9,7 +9,10 @@
   BackupClient,
   RequestedData,
 } from '../../backup-client-wasm/wasm/backup-client-wasm.js';
-import { completeRootKey } from '../../redux/persist-constants.js';
+import {
+  completeRootKey,
+  storeVersion,
+} from '../../redux/persist-constants.js';
 import type { EmscriptenModule } from '../types/module.js';
 import type { SQLiteQueryExecutor } from '../types/sqlite-query-executor.js';
 import { COMM_SQLITE_BACKUP_RESTORE_DATABASE_PATH } from '../utils/constants.js';
@@ -53,6 +56,7 @@
     sqliteQueryExecutor.restoreFromMainCompaction(
       COMM_SQLITE_BACKUP_RESTORE_DATABASE_PATH,
       backupDataKey,
+      `${storeVersion ?? -1}`,
     );
 
     sqliteQueryExecutor.setPersistStorageItem(