diff --git a/src/langgraph-platform/langgraph-server-changelog.mdx b/src/langgraph-platform/langgraph-server-changelog.mdx
index 61ea6d35e2..fa1742440d 100644
--- a/src/langgraph-platform/langgraph-server-changelog.mdx
+++ b/src/langgraph-platform/langgraph-server-changelog.mdx
@@ -5,6 +5,11 @@ sidebarTitle: Server changelog
 
 [LangGraph Server](/langgraph-platform/langgraph-server) is an API platform for creating and managing agent-based applications. It provides built-in persistence, a task queue, and supports deploying, configuring, and running assistants (agentic workflows) at scale. This changelog documents all notable updates, features, and fixes to LangGraph Server releases.
 
+<a id="2025-08-06"></a>
+## v0.2.121
+- Consolidated events to a single channel to prevent race conditions and optimize startup performance.
+- Ensured custom lifespans are invoked on queue workers for proper setup, and added tests.
+
 <a id="2025-08-04"></a>
 ## v0.2.120
 - Restored the original streaming behavior of runs, ensuring consistent inclusion of interrupt events based on `stream_mode` settings.