v0.2.13

migrations/README.md

@@ -1,6 +1,6 @@
 # Database schemas and migrations
 
-RustBox 0.2.12 keeps SQL, blob storage and search as independent concerns:
+RustBox 0.2.13 keeps SQL, blob storage and search as independent concerns:
 
 ```text
 database_backend = sqlite | mysql | pgsql
@@ -18,18 +18,21 @@ migrations/
 ├── sqlite/
 │   ├── schema.sql
 │   ├── V047__blob_keys_and_search_outbox.sql
-│   └── V048__folder_counter_generation.sql
+│   ├── V048__folder_counter_generation.sql
+│   └── V049__blob_delete_outbox.sql
 ├── mysql/
 │   ├── schema.sql
 │   ├── V047__blob_keys_and_search_outbox.sql
-│   └── V048__folder_counter_generation.sql
+│   ├── V048__folder_counter_generation.sql
+│   └── V049__blob_delete_outbox.sql
 └── pgsql/
     ├── schema.sql
     ├── V047__blob_keys_and_search_outbox.sql
-    └── V048__folder_counter_generation.sql
+    ├── V048__folder_counter_generation.sql
+    └── V049__blob_delete_outbox.sql
 ```
 
-Each `schema.sql` is the current complete schema for fresh installations. The historical compatibility baseline remains **V046**. RustBox 0.2.1 adds **V047**, which adds attachment SHA-256 metadata and the durable search outbox used by external indexing. RustBox 0.2.8 adds **V048**, which adds the monotonic `folders.counter_generation` used to reject stale IMAP counter writes even when the numeric counts temporarily return to an earlier value.
+Each `schema.sql` is the current complete schema for fresh installations. The historical compatibility baseline remains **V046**. RustBox 0.2.1 adds **V047**, which adds attachment SHA-256 metadata and the durable search outbox used by external indexing. RustBox 0.2.8 adds **V048**, which adds the monotonic `folders.counter_generation` used to reject stale IMAP counter writes even when the numeric counts temporarily return to an earlier value. RustBox 0.2.13 adds **V049**, the durable `blob_delete_outbox` used to retry physical object deletion after metadata is removed.
 
 Account data is isolated inside the selected physical database with a deterministic, collision-checked table prefix derived from the account hash. The `{{p}}` marker in tenant SQL is replaced by RustBox at provisioning/migration time. Sessions are global and therefore are not prefixed.
 
@@ -37,7 +40,7 @@ Account data is isolated inside the selected physical database with a determinis
 
 Every schema-changing release must add the same logical migration for all supported SQL engines and register it in `src/db/pool.rs`. Do not update only `schema.sql`: fresh installs use the baseline while existing installations use the numbered migration path.
 
-RustBox 0.2.12 does not add a runtime schema migration; **V049** remains the next migration number.
+RustBox 0.2.13 adds runtime migration **V049** on SQLite, MySQL and PostgreSQL. **V050** is the next migration number.
 
 Redis and Redis Sentinel do not use SQL migrations.