diff --git a/README.rst b/README.rst
index e0feb1dc5b35443c0599512fc87ead485fae7990..2d4efcff06aa03f5d8284ed40b9632c057de29f2 100644
--- a/README.rst
+++ b/README.rst
@@ -49,6 +49,4 @@ A great Open source project wouldn't exist without the hard work of its many con
 
 Release
 *******
-In order to provide new features and bug fixes, the community constantly updates the code and provides new releases.
-
-
+In order to provide new features and bug fixes, the community constantly updates the code and provides new releases. The documentation you are reading matches the |main_project_version| release of OpenHarmony.
diff --git a/definitions.rst b/definitions.rst
index 9de84a473c0e96b5327bc464254c025a5d79d5d8..11d88405a305b4a0aaec57e326e61a4d0020fb06 100644
--- a/definitions.rst
+++ b/definitions.rst
@@ -1,2 +1,3 @@
 .. |main_project_name| replace:: OpenHarmony
+.. |main_project_version| replace:: 0.1.0-rc1
 .. |contact_info| replace:: contact@openharmony.io