diff --git a/Cargo.toml b/Cargo.toml
index ba55525..2efdf79 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "yup-oauth2"
-version = "1.0.11"
+version = "2.0.0-pre"
 authors = ["Sebastian Thiel <byronimo@gmail.com>", "Lewin Bormann <lbo@spheniscida.de>"]
 repository = "https://github.com/dermesser/yup-oauth2"
 description = "An oauth2 implementation, providing the 'device', 'service account' and 'installed' authorization flows"
diff --git a/README.md b/README.md
index 7199fa0..69ae42e 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,11 @@ server communication and improve protocol compliance.
 
 ![usage][auth-usage]
 
+## Versions
+
+Version 1.x for Hyper versions bellow 12
+Version 2.x for Hyper versions 12 and above
+
 ## License
 
 Licensed under either of