tracks/elm/config.json in trackler-2.2.1.44 vs tracks/elm/config.json in trackler-2.2.1.45

@@ -321,17 +321,47 @@
       "topics": [
 
       ]
     },
     {
+      "uuid": "1f52ab74-02d5-db80-8f95-521aba04d183e704422",
+      "slug": "collatz-conjecture",
+      "core": false,
+      "unlocked_by": null,
+      "difficulty": 1,
+      "topics": [
+
+      ]
+    },
+    {
+      "uuid": "7890045d-0cf5-1980-21ae-7bd0228ad2a2993ae82",
+      "slug": "all-your-base",
+      "core": false,
+      "unlocked_by": null,
+      "difficulty": 2,
+      "topics": [
+
+      ]
+    },
+    {
       "uuid": "a730ca85-057d-db80-e44e-25b8028acede6337cca",
       "slug": "pascals-triangle",
       "core": false,
       "unlocked_by": null,
       "difficulty": 4,
       "topics": [
         "Lists",
         "Control-flow"
+      ]
+    },
+    {
+      "uuid": "5f540090-061e-2f80-40a8-d9782700ed2efdf8965",
+      "slug": "isogram",
+      "core": false,
+      "unlocked_by": null,
+      "difficulty": 3,
+      "topics": [
+        "Lists"
       ]
     }
   ],
   "foregone": [