Update README.md

README.md

@@ -322,6 +322,24 @@ Example:
 curl -H "Authorization: Bearer your-token" http://localhost:8080/deleteobject?hash=abc123
 ```
 
+### Delete Old Versions of a Label
+
+Deletes all objects for a label except those with tags containing "latest". Objects that share the same hash as a "latest" tagged version are also preserved.
+
+```
+GET /deleteoldobjects?label={label}
+```
+
+Example:
+```bash
+curl -H "Authorization: Bearer your-token" "http://localhost:8080/deleteoldobjects?label=myproject"
+```
+
+Response:
+```json
+{"result": "success", "deleted": 3}
+```
+
 ### List All Objects
 
 ```