diff --git a/.aide/flow-status.json b/.aide/flow-status.json
index b3a088b..0277aa7 100644
--- a/.aide/flow-status.json
+++ b/.aide/flow-status.json
@@ -1,7 +1,7 @@
 {
   "task_id": "2025-12-17T03-13-17",
   "current_phase": "docs",
-  "current_step": 15,
+  "current_step": 16,
   "started_at": "2025-12-17T03:13:17+08:00",
   "history": [
     {
@@ -121,7 +121,15 @@
       "action": "next-step",
       "phase": "docs",
       "step": 15,
-      "summary": "CHANGELOG.md 已更新（之前子计划3完成时已更新）"
+      "summary": "CHANGELOG.md 已更新（之前子计划3完成时已更新）",
+      "git_commit": "ab6650787e69efbe5c3276f9f767747a23311dcc"
+    },
+    {
+      "timestamp": "2025-12-17T04:15:06+08:00",
+      "action": "next-step",
+      "phase": "docs",
+      "step": 16,
+      "summary": "CHANGELOG.md 文档已补充完善"
     }
   ]
 }
diff --git a/.aide/flow-status.lock b/.aide/flow-status.lock
index 5d51d42..8b2ccbc 100755
--- a/.aide/flow-status.lock
+++ b/.aide/flow-status.lock
@@ -1 +1 @@
-27951
\ No newline at end of file
+28056
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4196a19..224afb6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@
 - 任务结束时自动合并并压缩提交
 - 分支概况文档（JSON + MD 双格式）
 - 安全合并策略（检测源分支变更，必要时创建临时分支）
+- 新增 `BranchManager` 类管理分支编号和概况
+- 扩展 `GitIntegration` 类支持分支操作
 
 ### 变更