diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 47f95657..0bce92bf 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "6.4.0-alpha20"
+  ".": "6.4.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 301b6041..7726b32d 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 77
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/courier%2Fcourier-7f8623bc0783065cb0109d10b6b774a372530343cd9fed253a93a2f451cb9a7d.yml
-openapi_spec_hash: 00cda0114b95af8693416ce26c4f8499
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/courier%2Fcourier-d643c34df4e6c0ba17b85adf379fddaf20ca14211e49fe9715eeb19e64d42556.yml
+openapi_spec_hash: 63b45d459907b1e30baeefcd3e552da7
 config_hash: 1dfe9dc0d55d828e116bd0f89061c3c5
diff --git a/CHANGELOG.md b/CHANGELOG.md
index dba0657d..0fab2224 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## 6.4.0 (2025-11-08)
+
+Full Changelog: [v6.4.0-alpha20...v6.4.0](https://github.com/trycourier/courier-python/compare/v6.4.0-alpha20...v6.4.0)
+
+### Features
+
+* **api:** manual updates ([b16bac2](https://github.com/trycourier/courier-python/commit/b16bac2553d106e3ddc040bdfe3beac79f8c0408))
+* **api:** manual updates ([cd9ed1b](https://github.com/trycourier/courier-python/commit/cd9ed1b563215b6896734669bd041c091f0db29a))
+* Token Prop Description Change ([66b3845](https://github.com/trycourier/courier-python/commit/66b3845cce21eca402dac7348ce9017fa8a55255))
+
+
+### Chores
+
+* configure new SDK language ([f004f07](https://github.com/trycourier/courier-python/commit/f004f07aabba46f78d7834c62b4ef1ce4ec11759))
+* **internal:** codegen related update ([6fb395b](https://github.com/trycourier/courier-python/commit/6fb395bb3062bb749130c8f6345fbfcd693d2584))
+
 ## 6.4.0-alpha20 (2025-11-04)
 
 Full Changelog: [v6.4.0-alpha19...v6.4.0-alpha20](https://github.com/trycourier/courier-python/compare/v6.4.0-alpha19...v6.4.0-alpha20)
diff --git a/README.md b/README.md
index 293c977c..43d038ec 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ The REST API documentation can be found on [www.courier.com](https://www.courier
 
 ```sh
 # install from PyPI
-pip install --pre trycourier
+pip install trycourier
 ```
 
 ## Usage
@@ -85,7 +85,7 @@ You can enable this by installing `aiohttp`:
 
 ```sh
 # install from PyPI
-pip install --pre trycourier[aiohttp]
+pip install trycourier[aiohttp]
 ```
 
 Then you can enable it by instantiating the client with `http_client=DefaultAioHttpClient()`:
diff --git a/pyproject.toml b/pyproject.toml
index 602c002f..41e23699 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "trycourier"
-version = "6.4.0-alpha20"
+version = "6.4.0"
 description = "The official Python library for the Courier API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/courier/_version.py b/src/courier/_version.py
index 099c5628..85b0db97 100644
--- a/src/courier/_version.py
+++ b/src/courier/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "courier"
-__version__ = "6.4.0-alpha20"  # x-release-please-version
+__version__ = "6.4.0"  # x-release-please-version
diff --git a/src/courier/resources/users/tokens.py b/src/courier/resources/users/tokens.py
index 6e70f181..9399a070 100644
--- a/src/courier/resources/users/tokens.py
+++ b/src/courier/resources/users/tokens.py
@@ -253,7 +253,7 @@ def add_single(
           expiry_date: ISO 8601 formatted date the token expires. Defaults to 2 months. Set to false to
               disable expiration.
 
-          properties: Properties sent to the provider along with the token
+          properties: Properties about the token.
 
           tracking: Tracking information about the device the token came from.
 
@@ -518,7 +518,7 @@ async def add_single(
           expiry_date: ISO 8601 formatted date the token expires. Defaults to 2 months. Set to false to
               disable expiration.
 
-          properties: Properties sent to the provider along with the token
+          properties: Properties about the token.
 
           tracking: Tracking information about the device the token came from.
 
diff --git a/src/courier/types/users/token_add_single_params.py b/src/courier/types/users/token_add_single_params.py
index efe8c4e2..73a7f901 100644
--- a/src/courier/types/users/token_add_single_params.py
+++ b/src/courier/types/users/token_add_single_params.py
@@ -28,7 +28,7 @@ class TokenAddSingleParams(TypedDict, total=False):
     """
 
     properties: object
-    """Properties sent to the provider along with the token"""
+    """Properties about the token."""
 
     tracking: Optional[Tracking]
     """Tracking information about the device the token came from."""
diff --git a/src/courier/types/users/user_token.py b/src/courier/types/users/user_token.py
index 26d16e09..06847fe9 100644
--- a/src/courier/types/users/user_token.py
+++ b/src/courier/types/users/user_token.py
@@ -58,7 +58,7 @@ class UserToken(BaseModel):
     """
 
     properties: Optional[object] = None
-    """Properties sent to the provider along with the token"""
+    """Properties about the token."""
 
     tracking: Optional[Tracking] = None
     """Tracking information about the device the token came from."""