diff --git a/README.md b/README.md
index 3dbc3bc5e..cf09801f6 100644
--- a/README.md
+++ b/README.md
@@ -114,7 +114,15 @@ Hydro 用户群：1085853538
 ## Unreleased
 
 - judge: breaking: 不再支持在 checker 等的编译阶段读取选手代码
-
+- judge: 添加 checker 编译缓存
+- ui: 优化题目详情页面 OGP 信息
+- core&ui: 升级 simplewebauthn
+- register: 添加 tsdown 支持
+- ui&judge: 支持指定 checker 语言
+- core: 基于相对时间计算一血而非绝对时间
+- ui&judge: 添加栈空间回显
+- install: 在树莓派中自动启用 cgroup.memory
+- vjudge: 使用 vjudge.mount 表替代 domain.mount
 
 ## Hydro 4.19.0 / UI 4.57.0
 
diff --git a/packages/hydrojudge/src/info.ts b/packages/hydrojudge/src/info.ts
index 9d415663f..693448139 100644
--- a/packages/hydrojudge/src/info.ts
+++ b/packages/hydrojudge/src/info.ts
@@ -11,7 +11,7 @@ export async function compilerVersions(langs: Record<string, LangConfig>) {
             copyIn: {},
             time: 10000,
             memory: 256,
-        }, 'compilerVersions', 5);
+        }, `compilerVersions<${lang}>`, 5);
         result[lang] = `${res.stdout}\n${res.stderr}`.trim();
     }
     return result;
diff --git a/packages/hydrooj/src/lib/i18n.ts b/packages/hydrooj/src/lib/i18n.ts
index fa1a7959c..61116b8b7 100644
--- a/packages/hydrooj/src/lib/i18n.ts
+++ b/packages/hydrooj/src/lib/i18n.ts
@@ -20,7 +20,7 @@ declare global {
 
 class I18nService extends Service {
     constructor(ctx: Context) {
-        super(ctx, 'i18n', true);
+        super(ctx, 'i18n');
     }
 
     load(lang: string, content: Record<string, string>) {
diff --git a/packages/hydrooj/src/service/api.ts b/packages/hydrooj/src/service/api.ts
index 22931667c..d6f033e9d 100644
--- a/packages/hydrooj/src/service/api.ts
+++ b/packages/hydrooj/src/service/api.ts
@@ -121,7 +121,7 @@ export function registerUnion(...args: any[]) {
 // TODO support dispose
 class ApiService extends Service {
     constructor(ctx: Context) {
-        super(ctx, 'api', true);
+        super(ctx, 'api');
         this.rebuild = debounce(this.rebuild.bind(this), 500, { trailing: true });
         ctx.on('ready', this.rebuild);
     }
diff --git a/packages/hydrooj/src/service/bus.ts b/packages/hydrooj/src/service/bus.ts
index 2b34f728d..3bb3d6621 100644
--- a/packages/hydrooj/src/service/bus.ts
+++ b/packages/hydrooj/src/service/bus.ts
@@ -128,7 +128,6 @@ export function apply(ctx: Context) {
 
 export default app;
 export const on = (a, b, c?) => app.on(a, b, c);
-export const off = (a, b) => app.off(a, b);
 export const once = (a, b, c?) => app.once(a, b, c);
 export const parallel = app.parallel.bind(app);
 export const emit = app.parallel.bind(app);
diff --git a/packages/hydrooj/src/service/check.ts b/packages/hydrooj/src/service/check.ts
index ad4ec1dd2..cfa433c33 100644
--- a/packages/hydrooj/src/service/check.ts
+++ b/packages/hydrooj/src/service/check.ts
@@ -39,7 +39,7 @@ export class CheckService extends Service {
     }
 }
 
-export const check = new CheckService(app, 'check', true);
+export const check = new CheckService(app, 'check');
 
 check.addChecker('Db', async (ctx, log, warn, error) => {
     try {
diff --git a/packages/hydrooj/src/service/migration.ts b/packages/hydrooj/src/service/migration.ts
index 922a69e70..e215171e7 100644
--- a/packages/hydrooj/src/service/migration.ts
+++ b/packages/hydrooj/src/service/migration.ts
@@ -17,7 +17,7 @@ export default class MigrationService extends Service {
     private called = false;
 
     constructor(ctx: Context) {
-        super(ctx, 'migration', true);
+        super(ctx, 'migration');
     }
 
     async registerChannel(name: string, s: MigrationScript[]) {