diff --git a/CHANGELOG.md b/CHANGELOG.md
index dcb96827b7..98529fa6c1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,31 @@
 
 # Changelog
 
+### [Version 2.1.55](https://github.com/lobehub/lobe-chat/compare/v2.1.54...v2.1.55)
+
+<sup>Released on **2026-04-29**</sup>
+
+#### 🐛 Bug Fixes
+
+- **chat**: preserve topics across cold route sends.
+
+<br/>
+
+<details>
+<summary><kbd>Improvements and Fixes</kbd></summary>
+
+#### What's fixed
+
+- **chat**: preserve topics across cold route sends, closes [#14284](https://github.com/lobehub/lobe-chat/issues/14284) ([b8fe675](https://github.com/lobehub/lobe-chat/commit/b8fe675))
+
+</details>
+
+<div align="right">
+
+[![](https://img.shields.io/badge/-BACK_TO_TOP-151515?style=flat-square)](#readme-top)
+
+</div>
+
 ### [Version 2.1.54](https://github.com/lobehub/lobe-chat/compare/v2.1.53...v2.1.54)
 
 <sup>Released on **2026-04-27**</sup>
diff --git a/changelog/v2.json b/changelog/v2.json
index f090d0c1f5..2411c61665 100644
--- a/changelog/v2.json
+++ b/changelog/v2.json
@@ -1,4 +1,9 @@
 [
+  {
+    "children": {},
+    "date": "2026-04-29",
+    "version": "2.1.55"
+  },
   {
     "children": {
       "fixes": ["clear stale topic when switching agents from a topic route."]
diff --git a/package.json b/package.json
index 5e548d9286..c2c65e252c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@lobehub/lobehub",
-  "version": "2.1.54",
+  "version": "2.1.55",
   "description": "LobeHub - an open-source,comprehensive AI Agent framework that supports speech synthesis, multimodal, and extensible Function Call plugin system. Supports one-click free deployment of your private ChatGPT/LLM web application.",
   "keywords": [
     "framework",