diff --git a/web/src/lib/components/ChangelogDrawer.svelte b/web/src/lib/components/ChangelogDrawer.svelte
new file mode 100644
index 0000000..18b851c
--- /dev/null
+++ b/web/src/lib/components/ChangelogDrawer.svelte
@@ -0,0 +1,120 @@
+<script lang="ts">
+	import * as Drawer from '$lib/components/ui/drawer';
+	import { Button } from '$lib/components/ui/button';
+	import X from '@lucide/svelte/icons/x';
+	import Calendar from '@lucide/svelte/icons/calendar';
+	import Tag from '@lucide/svelte/icons/tag';
+
+	let { open = $bindable(false) } = $props();
+
+	// Changelog 内容（从 CHANGELOG.md 解析或硬编码）
+	const changelog = [
+		{
+			version: '1.3.0',
+			date: '2026-01-26',
+			changes: {
+				新增: [
+					'京东账单支持 - 支持京东白条账单上传和清洗',
+					'自动识别京东账单类型（交易流水 ZIP）',
+					'解析京东白条账单 CSV 格式（含还款日期信息）',
+					'京东专属分类映射配置',
+					'支持京东外卖、京东平台商户等商户识别',
+					'上传页面和账单列表页面添加"京东"选项'
+				],
+				优化: [
+					'京东订单智能去重 - 上传京东账单时自动软删除其他来源中的京东订单',
+					'分类推断复核等级优化 - 京东账单引入 LOW 复核等级',
+					'京东平台商户关键词扩展'
+				],
+				技术改进: [
+					'新增京东账单清理器',
+					'新增京东专属配置',
+					'后端新增软删除接口',
+					'新增单元测试（11 个测试用例）'
+				]
+			}
+		},
+		{
+			version: '1.2.1',
+			date: '2026-01-23',
+			changes: {
+				优化: [
+					'智能复核快捷确认 - 在复核列表每行添加快捷确认按钮',
+					'无需打开详情页面即可确认分类正确',
+					'自动更新统计数据',
+					'提升复核效率，支持快速批量确认'
+				],
+				文档: ['AGENTS.md 更新 - 精简为 150 行，专为 AI 编程助手设计']
+			}
+		},
+		{
+			version: '1.2.0',
+			date: '2026-01-25',
+			changes: {
+				新增: [
+					'账单删除功能 - 支持在账单详情抽屉中删除账单（软删除）',
+					'删除按钮带二次确认，防止误操作',
+					'已删除的账单在所有查询中自动过滤'
+				],
+				技术改进: [
+					'后端 MongoDB 查询方法添加软删除过滤',
+					'新增 DELETE /api/bills/:id 接口'
+				]
+			}
+		}
+	];
+</script>
+
+<Drawer.Root bind:open>
+	<Drawer.Content class="max-h-[90vh]">
+		<Drawer.Header class="border-b">
+			<div class="flex items-center justify-between">
+				<Drawer.Title class="text-xl font-semibold">版本更新日志</Drawer.Title>
+				<Button variant="ghost" size="icon" onclick={() => (open = false)}>
+					<X class="size-4" />
+				</Button>
+			</div>
+		</Drawer.Header>
+
+		<div class="h-[calc(90vh-8rem)] overflow-y-auto p-6">
+			<div class="space-y-8">
+				{#each changelog as release}
+					<div class="space-y-3">
+						<!-- 版本号和日期 -->
+						<div class="flex items-center gap-3">
+							<div class="flex items-center gap-2">
+								<Tag class="size-5 text-primary" />
+								<h3 class="text-lg font-semibold">v{release.version}</h3>
+							</div>
+							<div class="flex items-center gap-1.5 text-sm text-muted-foreground">
+								<Calendar class="size-4" />
+								<span>{release.date}</span>
+							</div>
+						</div>
+
+						<!-- 变更内容 -->
+						<div class="space-y-4 pl-7 border-l-2 border-muted">
+							{#each Object.entries(release.changes) as [category, items]}
+								<div class="space-y-2">
+									<h4 class="text-sm font-semibold text-primary">{category}</h4>
+									<ul class="space-y-1.5 text-sm text-muted-foreground">
+										{#each items as item}
+											<li class="flex gap-2 leading-relaxed">
+												<span class="text-primary mt-1.5">•</span>
+												<span>{item}</span>
+											</li>
+										{/each}
+									</ul>
+								</div>
+							{/each}
+						</div>
+					</div>
+				{/each}
+			</div>
+		</div>
+
+		<Drawer.Footer class="border-t">
+			<Button variant="outline" onclick={() => (open = false)} class="w-full">关闭</Button>
+		</Drawer.Footer>
+	</Drawer.Content>
+</Drawer.Root>
diff --git a/web/src/routes/+layout.svelte b/web/src/routes/+layout.svelte
index 7ce061f..f12f5ce 100644
--- a/web/src/routes/+layout.svelte
+++ b/web/src/routes/+layout.svelte
@@ -10,6 +10,7 @@
   import * as DropdownMenu from '$lib/components/ui/dropdown-menu';
   import * as Avatar from '$lib/components/ui/avatar';
   import { Separator } from '$lib/components/ui/separator';
+  import ChangelogDrawer from '$lib/components/ChangelogDrawer.svelte';
   
   // Icons
   import Upload from '@lucide/svelte/icons/upload';
@@ -24,6 +25,10 @@
   import User from '@lucide/svelte/icons/user';
   import Bell from '@lucide/svelte/icons/bell';
   import Sparkles from '@lucide/svelte/icons/sparkles';
+  import Info from '@lucide/svelte/icons/info';
+  
+  // 从 package.json 导入版本号
+  import pkg from '../../package.json';
   
   // Theme
   import {
@@ -42,6 +47,7 @@
   let checkingHealth = $state(true);
   let isAuthenticated = $state(false);
   let currentUser = $state<AuthUser | null>(null);
+  let changelogOpen = $state(false);
   
   // 订阅认证状态
   $effect(() => {
@@ -228,9 +234,27 @@
       </Sidebar.Group>
     </Sidebar.Content>
 
-    <!-- Footer: 用户信息 -->
+    <!-- Footer: 用户信息 + 版本号 -->
     <Sidebar.Footer>
       <Sidebar.Menu>
+        <!-- 版本号 -->
+        <Sidebar.MenuItem>
+          <Sidebar.MenuButton>
+            {#snippet child({ props })}
+              <button 
+                {...props} 
+                onclick={() => changelogOpen = true}
+                class="w-full"
+                title="查看更新日志"
+              >
+                <Info class="size-4" />
+                <span class="text-xs">v{pkg.version}</span>
+              </button>
+            {/snippet}
+          </Sidebar.MenuButton>
+        </Sidebar.MenuItem>
+        
+        <!-- 用户信息 -->
         <Sidebar.MenuItem>
           <DropdownMenu.Root>
             <DropdownMenu.Trigger>
@@ -344,4 +368,7 @@
     </main>
   </Sidebar.Inset>
 </Sidebar.Provider>
+
+<!-- Changelog 抽屉 -->
+<ChangelogDrawer bind:open={changelogOpen} />
 {/if}