diff --git a/changes.rst b/changes.rst
index 166d19d..f36f6d4 100644
--- a/changes.rst
+++ b/changes.rst
@@ -1,11 +1,11 @@
 .. currentmodule:: bitproto
 
-.. _version-0.4.3:
+.. _version-0.4.4:
 
-Version 0.4.3
+Version 0.4.4
 -------------
 
-- Minor fix compiler setup.py path for windows
+- Minor fix compiler setup.py path issue.
 
 .. _version-0.4.2:
 
diff --git a/compiler/bitproto/__init__.py b/compiler/bitproto/__init__.py
index 1f444b7..f9dfa7a 100644
--- a/compiler/bitproto/__init__.py
+++ b/compiler/bitproto/__init__.py
@@ -8,5 +8,5 @@
 
 """
 
-__version__ = "0.4.3"
+__version__ = "0.4.4"
 __description__ = "bit level data interchange format."
diff --git a/compiler/setup.py b/compiler/setup.py
index dece864..eb4316c 100644
--- a/compiler/setup.py
+++ b/compiler/setup.py
@@ -8,6 +8,45 @@
     version = about["__version__"]
     description = about["__description__"]
 
+long_docs = """
+bitproto
+========
+
+Bitproto is a fast, lightweight and easy-to-use bit level data
+interchange format for serializing data structures.
+
+Features
+---------
+
+- Supports bit level data serialization.
+- Supports protocol extensiblity, for backward-compatibility.
+- Very easy to start
+
+  - Protocol syntax is similar to the well-known protobuf.
+  - Generating code with very simple serialization api.
+
+- Supports the following languages
+
+  - C - No dynamic memory allocation.
+  - Go - No reflection or type assertions.
+  - Python - No magic :)
+
+- Blazing fast encoding/decoding.
+
+
+Links
+-----
+
+Website: https://bitproto.readthedocs.io
+
+中文文档: https://bitproto.readthedocs.io/zh/latest
+
+License
+-------
+
+BSD3.
+"""
+
 setup(
     name="bitproto",
     version=version,
@@ -17,7 +56,7 @@
     description=description,
     packages=["bitproto"],
     include_package_data=True,
-    long_description=open(join("..", "README.rst")).read(),
+    long_description=long_docs,
     zip_safe=False,
     entry_points={"console_scripts": ["bitproto=bitproto._main:run_bitproto"]},
     python_requires=">=3.7",
diff --git a/docs/conf.py b/docs/conf.py
index 095b5b0..4ac0895 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -8,7 +8,7 @@
 project = "bitproto"
 copyright = "2021, Chao Wang"
 author = "Chao Wang"
-version = "0.4.2"
+version = "0.4.4"
 exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]
 html_theme = "alabaster"
 html_static_path = ["_static"]