diff --git a/CHANGELOG.md b/CHANGELOG.md
index d73c975..d8157c9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+## [4.28.0](https://github.com/GetStream/stream-chat-python/compare/v4.27.0...v4.28.0) (2025-11-13)
+
+
+### Features
+
+* add message_timestamp option to MarkUnread ([#211](https://github.com/GetStream/stream-chat-python/issues/211)) ([1e239cd](https://github.com/GetStream/stream-chat-python/commit/1e239cd0688027442e169c968e63ef21e1a3c018))
+
 ## [4.27.0](https://github.com/GetStream/stream-chat-python/compare/v4.26.0...v4.27.0) (2025-11-12)
 
 
diff --git a/stream_chat/__pkg__.py b/stream_chat/__pkg__.py
index 176a0f5..b141c3a 100644
--- a/stream_chat/__pkg__.py
+++ b/stream_chat/__pkg__.py
@@ -1,6 +1,6 @@
 __author__ = "Tommaso Barbugli"
 __copyright__ = "Copyright 2019-2022, Stream.io, Inc"
-__version__ = "4.27.0"
+__version__ = "4.28.0"
 __maintainer__ = "Tommaso Barbugli"
 __email__ = "support@getstream.io"
 __status__ = "Production"