diff --git a/manifest.json b/manifest.json
index 8a3d285..16d79b7 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,10 +1,9 @@
 {
-  "api_version": "1",
-  "manifest_version": "1",
   "name": "Unicode extension",
-  "description": "Extension Description",
-  "developer_name": "John Doe",
+  "description": "Search for Unicode characters and copy them to the clipboard",
+  "developer_name": "Vangelis Kostalas",
   "icon": "images/unicode.png",
+  "required_api_version": "^2.0.0",
   "options": {
     "query_debounce": 0.5
   },
diff --git a/versions.json b/versions.json
new file mode 100644
index 0000000..b179cdb
--- /dev/null
+++ b/versions.json
@@ -0,0 +1,4 @@
+[
+  { "required_api_version": "^1.0.0", "commit": "API_v1" },
+  { "required_api_version": "^2.0.0", "commit": "master" }
+]