diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index b0daa7d7..895bf0e3 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.28.1"
+  ".": "2.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 158ddc2f..1b212f92 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [2.0.0](https://github.com/momentohq/client-sdk-python/compare/v1.28.1...v2.0.0) (2026-09-01)
+
+
+### ⚠ BREAKING CHANGES
+
+* requires momento-wire-types >=0.135.0 and protobuf >=7.35.1,<8, and raises the minimum Python to 3.10. Support for protobuf 3 and 4 is removed.
+
+### Features
+
+* require protobuf 7 via momento-wire-types 0.135 ([#523](https://github.com/momentohq/client-sdk-python/issues/523)) ([49a7b36](https://github.com/momentohq/client-sdk-python/commit/49a7b367284318c53ee3ba50c7b6c3a20f861080))
+
+
+### Miscellaneous
+
+* retire the machine-user release token ([#520](https://github.com/momentohq/client-sdk-python/issues/520)) ([3b6a220](https://github.com/momentohq/client-sdk-python/commit/3b6a2205eb61958093627f22d07712d7df47b9a5))
+
 ## [1.28.1](https://github.com/momentohq/client-sdk-python/compare/v1.28.0...v1.28.1) (2026-02-04)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 30a0d7ae..09408faf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "momento"
-version = "1.28.1"
+version = "2.0.0"
 
 authors = ["Momento <hello@momentohq.com>"]
 description = "SDK for Momento"
diff --git a/src/momento/__init__.py b/src/momento/__init__.py
index 9db68999..a44d3df5 100644
--- a/src/momento/__init__.py
+++ b/src/momento/__init__.py
@@ -18,7 +18,7 @@
 from .topic_client import TopicClient
 from .topic_client_async import TopicClientAsync
 
-__version__ = "1.28.1"  # x-release-please-version
+__version__ = "2.0.0"  # x-release-please-version
 
 logging.getLogger("momentosdk").addHandler(logging.NullHandler())
 logs.initialize_momento_logging()