diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78834647..bcb6e684 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,15 @@ Release History
 ==============
 
 ### Pending
+
+### Version 9.0.0
+
+Released on Dec 9, 2023
+
+#### Update
 - fix: fix the issue of incorrect handling of special horizon links on the Windows platform. ([#825](https://github.com/StellarCN/py-stellar-base/pull/825))
+- chore: add support for Python 3.12. ([#799](https://github.com/StellarCN/py-stellar-base/pull/799))
+- chore: `SorobanServer` uses testnet instead of futurenet by default ([#831](https://github.com/StellarCN/py-stellar-base/pull/831))
 
 ### Version 9.0.0-beta1
 
diff --git a/README.rst b/README.rst
index 3ddc7f1b..d7d43c1c 100644
--- a/README.rst
+++ b/README.rst
@@ -56,13 +56,13 @@ Installing
 
 .. code-block:: text
 
-    pip install --upgrade --pre stellar-sdk
+    pip install --upgrade stellar-sdk
 
 If you need to use asynchronous, please use the following command to install the required dependencies.
 
 .. code-block:: text
 
-    pip install --upgrade --pre stellar-sdk[aiohttp]
+    pip install --upgrade stellar-sdk[aiohttp]
 
 We follow `Semantic Versioning 2.0.0 <https://semver.org/>`_, and I strongly
 recommend that you specify its major version number in the dependency
diff --git a/examples/soroban_invoke_contract_function.py b/examples/soroban_invoke_contract_function.py
index 1155939d..c5218dc4 100644
--- a/examples/soroban_invoke_contract_function.py
+++ b/examples/soroban_invoke_contract_function.py
@@ -6,7 +6,7 @@
     to deploy the [Hello World contract](https://github.com/stellar/soroban-examples/tree/main/hello_world) first.
 
 2. Install Stellar Python SDK from pypi:
-    pip install --upgrade --pre stellar-sdk
+    pip install --upgrade stellar-sdk
 
 3. Modify the necessary parameters in this script, then run it.
 """
diff --git a/pyproject.toml b/pyproject.toml
index f6792645..3ee3469c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "stellar-sdk"
-version = "9.0.0b1"
+version = "9.0.0"
 description = "The Python Stellar SDK library provides APIs to build transactions and connect to Horizon and Soroban-RPC server."
 authors = [
     "overcat <4catcode@gmail.com>",
@@ -24,11 +24,13 @@ keywords = [
     "horizon",
     "soroban",
     "sdex",
-    "trading"
+    "trading",
+    "soroban",
+    "soroban-rpc"
 ]
 license = "Apache License 2.0"
 classifiers = [
-    "Development Status :: 4 - Beta",
+    "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
     "Natural Language :: English",
     "Operating System :: OS Independent",
diff --git a/stellar_sdk/__version__.py b/stellar_sdk/__version__.py
index 8c6236b6..d8cc3acb 100644
--- a/stellar_sdk/__version__.py
+++ b/stellar_sdk/__version__.py
@@ -11,7 +11,7 @@
 __description__ = "The Python Stellar SDK library provides APIs to build transactions and connect to Horizon and Soroban-RPC server."
 __url__ = "https://github.com/StellarCN/py-stellar-base"
 __issues__ = f"{__url__}/issues"
-__version__ = "9.0.0b1"
+__version__ = "9.0.0"
 __author__ = "Eno, overcat"
 __author_email__ = "appweb.cn@gmail.com, 4catcode@gmail.com"
 __license__ = "Apache License 2.0"