diff --git a/README.md b/README.md
index bb66bf1e..5dff6bf8 100644
--- a/README.md
+++ b/README.md
@@ -40,6 +40,19 @@ Telegram [@webpack_exports_undefined](https://t.me/webpack_exports_undefined)
 <details>
 <summary><h2>更新日志（点击展开）</h2></summary>
 
+### Hydro 4.6.0 / UI 4.46.0
+- core&ui: 添加 webauthn 支持
+- ui: 修复题解投票
+- ui: 优化比赛详情页布局
+- ui: 修复快捷搜索中评测记录链接
+- core: 添加 `Types.ArrayOf()` 支持
+- ui: 修复侧栏预览保存
+- core: 添加 CookieDomain 设置
+- ui: 修复 dev 模式下页面无限刷新的问题
+- vjudge: 提供 BasicFetcher 组件
+- core: DomainModel 缓存
+- core&ui: 其他漏洞修复
+
 ### Hydro 4.5.2 / UI 4.45.1
 - core: 添加乐多赛支持
 - vjudge: 移除 puppeteer 相关依赖
diff --git a/packages/hydrooj/src/handler/home.ts b/packages/hydrooj/src/handler/home.ts
index 188e4960..8dfe59fc 100644
--- a/packages/hydrooj/src/handler/home.ts
+++ b/packages/hydrooj/src/handler/home.ts
@@ -3,7 +3,6 @@ import { generateRegistrationOptions, verifyRegistrationResponse } from '@simple
 import yaml from 'js-yaml';
 import { pick } from 'lodash';
 import { Binary, ObjectID } from 'mongodb';
-import { camelCase } from '@hydrooj/utils/lib/utils';
 import { Context } from '../context';
 import {
     AuthOperationError, BlacklistedError, DomainAlreadyExistsError, InvalidTokenError,
@@ -33,7 +32,7 @@ import * as bus from '../service/bus';
 import {
     ConnectionHandler, Handler, param, query, requireSudo, Types,
 } from '../service/server';
-import { md5 } from '../utils';
+import { camelCase, md5 } from '../utils';
 
 export class HomeHandler extends Handler {
     uids = new Set<number>();
@@ -175,7 +174,7 @@ class HomeSecurityHandler extends Handler {
                 'authenticatorAttachment', 'regat', 'fmt',
             ])),
             geoipProvider: geoip?.provider,
-            icon: useragent.icon,
+            icon: (str = '') => str.split(' ')[0].toLowerCase(),
         };
     }
 
diff --git a/packages/hydrooj/src/interface.ts b/packages/hydrooj/src/interface.ts
index 788acb7f..e2adb7e3 100644
--- a/packages/hydrooj/src/interface.ts
+++ b/packages/hydrooj/src/interface.ts
@@ -734,7 +734,6 @@ export interface Lib extends Record<string, any> {
     rank: typeof import('./lib/rank');
     rating: typeof import('./lib/rating');
     testdataConfig: typeof import('./lib/testdataConfig');
-    useragent: typeof import('./lib/useragent');
     validator: typeof import('./lib/validator');
     template?: any;
     problemSearch: ProblemSearch;
diff --git a/packages/hydrooj/src/lib/index.ts b/packages/hydrooj/src/lib/index.ts
index db563bcc..b4d98514 100644
--- a/packages/hydrooj/src/lib/index.ts
+++ b/packages/hydrooj/src/lib/index.ts
@@ -1,6 +1,5 @@
 import './i18n';
 import './mail';
-import './useragent';
 import './paginate';
 import './hash.hydro';
 import './rank';
diff --git a/packages/hydrooj/src/lib/useragent.ts b/packages/hydrooj/src/lib/useragent.ts
index a32589b0..0dfb414d 100644
--- a/packages/hydrooj/src/lib/useragent.ts
+++ b/packages/hydrooj/src/lib/useragent.ts
@@ -3,9 +3,3 @@ import * as browser from 'detect-browser';
 export function parse(str: string) {
     return browser.parseUserAgent(str);
 }
-
-export function icon(str: string = '') {
-    return str.split(' ')[0].toLowerCase();
-}
-
-global.Hydro.lib.useragent = { parse, icon };