diff --git a/src/vigenere_api/api/app.py b/src/vigenere_api/api/app.py
index 7d0af337293c564e00c79d0c5d50350df0439bae..a963bbcd0334082ed7b4d7d119a7ee70e6ee904e 100644
--- a/src/vigenere_api/api/app.py
+++ b/src/vigenere_api/api/app.py
@@ -16,14 +16,13 @@
 
 """Create the application Vigenere-API."""
 
-from blacksheep import Application
-from blacksheep import Response
+from blacksheep import Application, Response
 from blacksheep.server.env import is_development
 from blacksheep.server.responses import redirect
 
-from .v1.controllers import CaesarController
-from .v1.openapi_docs import docs
-
+from vigenere_api.version import get_version
+from .v1.controllers import CaesarController as V1CaesarController
+from .v1.openapi_docs import docs as v1_docs
 
 application = Application()
 application.debug = False
@@ -39,13 +38,15 @@ if is_development():  # pragma: no cover
     application.debug = True
     application.show_error_details = True
 
-application.register_controllers([CaesarController])
-docs.bind_app(application)
+application.register_controllers([V1CaesarController])
+v1_docs.bind_app(application)
 
 get = application.router.get
 
+version = get_version()
+
 
-@docs(ignored=True)
+@v1_docs(ignored=True)
 @get()
 async def index() -> Response:
     """
@@ -58,4 +59,20 @@ async def index() -> Response:
     redirect
         Response
     """
-    return redirect("/api/v1")
+    return redirect(f"/api/v{version.major}")
+
+
+def __fallback() -> str:
+    """
+    Process all requests to bad routes.
+
+    Returns
+    -------
+    error_text
+        str
+    """
+
+    return "OOPS! Nothing was found here!"
+
+
+application.router.fallback = __fallback
diff --git a/src/vigenere_api/api/v1/controllers/docs/__init__.py b/src/vigenere_api/api/v1/controllers/docs/__init__.py
deleted file mode 100644
index ae19115604b299defb11e27bc455eeb9a0973a4e..0000000000000000000000000000000000000000
--- a/src/vigenere_api/api/v1/controllers/docs/__init__.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-#  Vigenere-API                                                                        +
-#  Copyright (C) 2023 Axel DAVID                                                       +
-#                                                                                      +
-#  This program is free software: you can redistribute it and/or modify it under       +
-#  the terms of the GNU General Public License as published by the Free Software       +
-#  Foundation, either version 3 of the License, or (at your option) any later version. +
-#                                                                                      +
-#  This program is distributed in the hope that it will be useful, but WITHOUT ANY     +
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR       +
-#  A PARTICULAR PURPOSE. See the GNU General Public License for more details.          +
-#                                                                                      +
-#  You should have received a copy of the GNU General Public License along with        +
-#  this program.  If not, see <https://www.gnu.org/licenses/>.                         +
-# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
-"""All OpenAPI docs for each controller."""
-
-from .caesar import post_caesar_cipher_docs
-from .caesar import post_caesar_decipher_docs
-
-
-__all__ = ["post_caesar_cipher_docs", "post_caesar_decipher_docs"]
diff --git a/src/vigenere_api/api/v1/controllers/docs/vigenere.py b/src/vigenere_api/api/v1/controllers/docs/vigenere.py
deleted file mode 100644
index 44c1a51312655c1dd298daec1f585017a0b9c9f4..0000000000000000000000000000000000000000
--- a/src/vigenere_api/api/v1/controllers/docs/vigenere.py
+++ /dev/null
@@ -1,17 +0,0 @@
-# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-#  Vigenere-API                                                                        +
-#  Copyright (C) 2023 Axel DAVID                                                       +
-#                                                                                      +
-#  This program is free software: you can redistribute it and/or modify it under       +
-#  the terms of the GNU General Public License as published by the Free Software       +
-#  Foundation, either version 3 of the License, or (at your option) any later version. +
-#                                                                                      +
-#  This program is distributed in the hope that it will be useful, but WITHOUT ANY     +
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR       +
-#  A PARTICULAR PURPOSE. See the GNU General Public License for more details.          +
-#                                                                                      +
-#  You should have received a copy of the GNU General Public License along with        +
-#  this program.  If not, see <https://www.gnu.org/licenses/>.                         +
-# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
-"""The vigenere controller's documentation."""
diff --git a/src/vigenere_api/api/v1/controllers/vigenere.py b/src/vigenere_api/api/v1/controllers/vigenere.py
deleted file mode 100644
index dbd964bb3d840253c15b91e85d28c77e4b846fd0..0000000000000000000000000000000000000000
--- a/src/vigenere_api/api/v1/controllers/vigenere.py
+++ /dev/null
@@ -1,17 +0,0 @@
-# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-#  Vigenere-API                                                                        +
-#  Copyright (C) 2023 Axel DAVID                                                       +
-#                                                                                      +
-#  This program is free software: you can redistribute it and/or modify it under       +
-#  the terms of the GNU General Public License as published by the Free Software       +
-#  Foundation, either version 3 of the License, or (at your option) any later version. +
-#                                                                                      +
-#  This program is distributed in the hope that it will be useful, but WITHOUT ANY     +
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR       +
-#  A PARTICULAR PURPOSE. See the GNU General Public License for more details.          +
-#                                                                                      +
-#  You should have received a copy of the GNU General Public License along with        +
-#  this program.  If not, see <https://www.gnu.org/licenses/>.                         +
-# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-
-"""The vigenere controller."""