fix broken subtensor pallet on_runtime_upgrade()

pallets/subtensor/src/macros/hooks.rs

@@ -102,9 +102,7 @@ mod hooks {
                 // Remove all entries in TotalHotkeyColdkeyStakesThisInterval
                 .saturating_add(migrations::migrate_remove_total_hotkey_coldkey_stakes_this_interval::migrate_remove_total_hotkey_coldkey_stakes_this_interval::<T>())
                 // Wipe the deprecated RateLimit storage item in the commitments pallet
-                .saturating_add(migrations::migrate_remove_commitments_rate_limit::migrate_remove_commitments_rate_limit::<T>());
-
-            weight
+                .saturating_add(migrations::migrate_remove_commitments_rate_limit::migrate_remove_commitments_rate_limit::<T>())
                 // Remove all entries in orphaned storage items
                 .saturating_add(
                     migrations::migrate_orphaned_storage_items::migrate_orphaned_storage_items::<T>(
@@ -116,6 +114,20 @@ mod hooks {
                 .saturating_add(migrations::migrate_reset_max_burn::migrate_reset_max_burn::<T>())
                 // Migrate ColdkeySwapScheduled structure to new format
                 .saturating_add(migrations::migrate_coldkey_swap_scheduled::migrate_coldkey_swap_scheduled::<T>());
+
+            // fix storage version for subtensor pallet
+            use frame_support::traits::{GetStorageVersion, StorageVersion};
+            let current_version = <Pallet<T> as GetStorageVersion>::on_chain_storage_version();
+            let v7 = StorageVersion::new(7);
+            if current_version == StorageVersion::new(6) {
+                v7.put::<Pallet<T>>();
+            } else if current_version < v7 {
+                panic!(
+                    "Storage version mismatch: expected at least {:?}, found {:?}",
+                    v7, current_version
+                );
+            }
+
             weight
         }
 

runtime/src/lib.rs

@@ -209,7 +209,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     //   `spec_version`, and `authoring_version` are the same between Wasm and native.
     // This value is set to 100 to notify Polkadot-JS App (https://polkadot.js.org/apps) to use
     //   the compatible custom types.
-    spec_version: 271,
+    spec_version: 272,
     impl_version: 1,
     apis: RUNTIME_API_VERSIONS,
     transaction_version: 1,