docs: Add release notes for v9.0.0a64

DIRACGrid CI · DIRACGrid CI · commit 0bad538758fe · 2025-08-13T08:38:03.000Z
diff --git a/release.notes b/release.notes
@@ -1,3 +1,10 @@
+[v9.0.0a64]
+
+*WorkloadManagement
+
+FIX: (#8282) Use of closed file in ZstdCompatibleTarFile when downloading sandboxes
+NEW: (#8282) add sandbox download functionality in Dirac runLocal API
+
 [v9.0.0a63]
 
 *WorkloadManagementSystem
