diff --git a/src/ai/backend/manager/api/schema.graphql b/src/ai/backend/manager/api/schema.graphql
index 109ba2a402..c2adc11a84 100644
--- a/src/ai/backend/manager/api/schema.graphql
+++ b/src/ai/backend/manager/api/schema.graphql
@@ -890,6 +890,9 @@ type VirtualFolder implements Item {
   cur_size: BigInt
   cloneable: Boolean
   status: String
+
+  """Added in 24.12.0."""
+  status_history: JSONString
 }
 
 type ComputeSession implements Item {