diff --git a/CHANGELOG.md b/CHANGELOG.md
index 646cf159..ad69d206 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## 1.0.0
+- Add error message to APIException [#52]
+
 ## 0.3.0
 - Add missing status field to the Data model [#33]
 - Add error codes from App Store Server API v1.9 [#39]
diff --git a/README.md b/README.md
index 7b63d9a5..377dd352 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,6 @@ The Python server library for the [App Store Server API](https://developer.apple
 4. [Usage](#usage)
 5. [Support](#support)
 
-## ⚠️ Beta ⚠️
-
-This software is currently in Beta testing. Therefore, it should only be used for testing purposes, like for the Sandbox environment. API signatures may change between releases and signature verification may receive security updates. 
-
 ## Installation
 
 #### Requirements
diff --git a/appstoreserverlibrary/api_client.py b/appstoreserverlibrary/api_client.py
index be604ebe..bddcf105 100644
--- a/appstoreserverlibrary/api_client.py
+++ b/appstoreserverlibrary/api_client.py
@@ -471,7 +471,7 @@ def _make_request(self, path: str, method: str, queryParameters: Dict[str, Union
         c = _get_cattrs_converter(type(body)) if body != None else None
         json = c.unstructure(body) if body != None else None
         headers = {
-            'User-Agent': "app-store-server-library/python/0.1",
+            'User-Agent': "app-store-server-library/python/1.0.0",
             'Authorization': 'Bearer ' + self._generate_token(),
             'Accept': 'application/json'
         }
diff --git a/setup.py b/setup.py
index ee4fce08..e17ac4b5 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
 
 setup(
     name="app-store-server-library",
-    version="0.3.0",
+    version="1.0.0",
     description="The App Store Server Library",
     long_description=long_description,
     long_description_content_type="text/markdown",