tracks/elm/config.json in trackler-2.2.1.107 vs tracks/elm/config.json in trackler-2.2.1.108

@@ -352,16 +352,28 @@
         "Lists",
         "Control-flow"
       ]
     },
     {
-      "uuid": "6b6e9f4d-9c45-4d8c-9e8e-b2144204d2da",
+      "uuid": "5f540090-061e-2f80-40a8-d9782700ed2efdf8965",
       "slug": "isogram",
       "core": false,
       "unlocked_by": null,
       "difficulty": 3,
       "topics": [
         "Lists"
+      ]
+    },
+    {
+      "uuid": "1F9FE5BC-8213-44FD-B7D1-5D4CC7F3A475",
+      "slug": "binary-search",
+      "core": false,
+      "unlocked_by": null,
+      "difficulty": 7,
+      "topics": [
+        "algorithms",
+        "arrays",
+        "recursion"
       ]
     }
   ],
   "foregone": [