diff --git a/.vscode/settings.json b/.vscode/settings.json
index 61477ff1..1f5a59e8 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -5,5 +5,9 @@
     "editor.detectIndentation": true,
     "editor.formatOnSave": true,
     "editor.renderWhitespace": "boundary",
-    "typescript.tsdk": "node_modules/typescript/lib"
+    "typescript.tsdk": "node_modules/typescript/lib",
+    "[json]": {
+        "files.insertFinalNewline": true,
+        "files.trimFinalNewlines": false,
+    }
 }
\ No newline at end of file
diff --git a/package.json b/package.json
index 94165c8a..1a78e21b 100644
--- a/package.json
+++ b/package.json
@@ -31,8 +31,8 @@
         "@types/jest": "^26.0.22",
         "@types/node": "^14.14.37",
         "@types/semver": "^7.3.4",
-        "@typescript-eslint/eslint-plugin": "^4.20.0",
-        "@typescript-eslint/parser": "^4.20.0",
+        "@typescript-eslint/eslint-plugin": "^4.21.0",
+        "@typescript-eslint/parser": "^4.21.0",
         "cross-spawn": "^7.0.3",
         "eslint": "^7.23.0",
         "eslint-config-airbnb-typescript": "^12.0.0",
@@ -48,4 +48,4 @@
         "typescript": "4.2.3",
         "yargs": "^16.2.0"
     }
-}
\ No newline at end of file
+}
diff --git a/packages/hydrojudge/package.json b/packages/hydrojudge/package.json
index eb02d707..b86dddb3 100644
--- a/packages/hydrojudge/package.json
+++ b/packages/hydrojudge/package.json
@@ -24,8 +24,8 @@
     "license": "AGPL-3.0-only",
     "devDependencies": {
         "@types/bson": "^4.0.2",
-        "@types/fs-extra": "^9.0.9",
+        "@types/fs-extra": "^9.0.10",
         "@types/js-yaml": "^4.0.0",
         "@types/shell-quote": "^1.7.0"
     }
-}
\ No newline at end of file
+}
diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index ea666970..0b0d5e21 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.21.8",
+    "version": "2.21.9",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
@@ -38,8 +38,8 @@
         "yargs": "^16.2.0"
     },
     "devDependencies": {
-        "@types/adm-zip": "^0.4.33",
-        "@types/fs-extra": "^9.0.9",
+        "@types/adm-zip": "^0.4.34",
+        "@types/fs-extra": "^9.0.10",
         "@types/inquirer": "^7.3.1",
         "@types/js-yaml": "^4.0.0",
         "@types/koa": "^2.13.1",
@@ -47,7 +47,7 @@
         "@types/koa-static-cache": "^5.1.0",
         "@types/lodash": "^4.14.168",
         "@types/minio": "^7.0.7",
-        "@types/mongodb": "^3.6.11",
+        "@types/mongodb": "^3.6.12",
         "@types/nodemailer": "^6.4.1",
         "@types/serialize-javascript": "^5.0.0",
         "@types/sockjs": "^0.3.32",
@@ -55,4 +55,4 @@
         "@types/yargs": "^16.0.1",
         "formidable": "^1.2.2"
     }
-}
\ No newline at end of file
+}
diff --git a/packages/hydrooj/src/handler/judge.ts b/packages/hydrooj/src/handler/judge.ts
index 503533f3..d6479604 100644
--- a/packages/hydrooj/src/handler/judge.ts
+++ b/packages/hydrooj/src/handler/judge.ts
@@ -32,6 +32,8 @@ async function _postJudge(rdoc: Rdoc) {
         ? await problem.inc(rdoc.domainId, rdoc.pid, 'nAccept', 1)
         : await problem.get(rdoc.domainId, rdoc.pid);
     const difficulty = difficultyAlgorithm(pdoc.nSubmit, pdoc.nAccept);
+    if (!updated) await record.updateMulti(rdoc.domainId, { uid: rdoc.uid, status: builtin.STATUS.STATUS_ACCEPTED }, { effective: false });
+    await record.update(rdoc.domainId, rdoc._id, { effective: true });
     await problem.edit(pdoc.domainId, pdoc.docId, { difficulty });
     await bus.serial('record/judge', rdoc, updated);
 }
diff --git a/packages/hydrooj/src/interface.ts b/packages/hydrooj/src/interface.ts
index a32f6629..40fc0f9d 100644
--- a/packages/hydrooj/src/interface.ts
+++ b/packages/hydrooj/src/interface.ts
@@ -247,6 +247,7 @@ export interface Rdoc {
     progress?: number,
     input?: string,
     contest?: ContestInfo,
+    effective?: boolean,
 }
 
 export interface ScoreboardNode {
diff --git a/packages/hydrooj/src/model/record.ts b/packages/hydrooj/src/model/record.ts
index 81f1aad1..6f47be7b 100644
--- a/packages/hydrooj/src/model/record.ts
+++ b/packages/hydrooj/src/model/record.ts
@@ -1,5 +1,7 @@
 import {
-    ObjectID, Collection, UpdateQuery, PushOperator, MatchKeysAndValues, OnlyFieldsOfType,
+    ObjectID, Collection, UpdateQuery,
+    PushOperator, MatchKeysAndValues, OnlyFieldsOfType,
+    FilterQuery,
 } from 'mongodb';
 import { Dictionary } from 'lodash';
 import moment from 'moment';
@@ -113,6 +115,20 @@ class RecordModel {
         return await RecordModel.get(domainId, _id);
     }
 
+    static async updateMulti(
+        domainId: string, $match: FilterQuery<Rdoc>,
+        $set?: MatchKeysAndValues<Rdoc>,
+        $push?: PushOperator<Rdoc>,
+        $unset?: OnlyFieldsOfType<Rdoc, any, true | '' | 1>,
+    ) {
+        const $update: UpdateQuery<Rdoc> = {};
+        if ($set && Object.keys($set).length) $update.$set = $set;
+        if ($push && Object.keys($push).length) $update.$push = $push;
+        if ($unset && Object.keys($unset).length) $update.$unset = $unset;
+        const res = await RecordModel.coll.updateMany({ domainId, ...$match }, $update);
+        return res.modifiedCount;
+    }
+
     static reset(domainId: string, rid: ObjectID, isRejudge: boolean) {
         const upd: any = {
             score: 0,
diff --git a/packages/hydrooj/src/pipelineUtils.ts b/packages/hydrooj/src/pipelineUtils.ts
new file mode 100644
index 00000000..d868cdb9
--- /dev/null
+++ b/packages/hydrooj/src/pipelineUtils.ts
@@ -0,0 +1,40 @@
+/* eslint-disable no-await-in-loop */
+import { DomainDoc } from './loader';
+import domain from './model/domain';
+import problem, { Field, Pdoc } from './model/problem';
+
+export async function iterateAllDomain(cb: (ddoc: DomainDoc, current?: number, total?: number) => Promise<any>) {
+    const ddocs = await domain.getMulti().project({ _id: 1, owner: 1 }).toArray();
+    for (const i in ddocs) await cb(ddocs[i], +i, ddocs.length);
+}
+
+interface PartialPdoc extends Pdoc {
+    [key: string]: any,
+}
+
+export async function iterateAllProblemInDomain(
+    domainId: string,
+    fields: (Field | string)[],
+    cb: (pdoc: PartialPdoc, current?: number, total?: number) => Promise<any>,
+) {
+    if (!fields.includes('domainId')) fields.push('domainId');
+    if (!fields.includes('docId')) fields.push('docId');
+    const cursor = problem.getMulti(domainId, {}, fields as any);
+    const total = await problem.getMulti(domainId, {}).count();
+    let i = 0;
+    while (await cursor.hasNext()) {
+        const doc = await cursor.next();
+        i++;
+        const res = await cb(doc, i, total);
+        if (res) await problem.edit(doc.domainId, doc.docId, res);
+    }
+}
+
+export async function iterateAllProblem(
+    fields: (Field | string)[],
+    cb: (pdoc: PartialPdoc, current?: number, total?: number) => Promise<any>,
+) {
+    await iterateAllDomain(async (d) => {
+        await iterateAllProblemInDomain(d._id, fields, cb);
+    });
+}
diff --git a/packages/hydrooj/src/script/problemStat.ts b/packages/hydrooj/src/script/problemStat.ts
index 1593c812..ceaa7aac 100644
--- a/packages/hydrooj/src/script/problemStat.ts
+++ b/packages/hydrooj/src/script/problemStat.ts
@@ -50,7 +50,7 @@ export async function udoc() {
 
 export async function pdoc() {
     const pipeline = [
-        { $match: { hidden: false, type: { $ne: 'run' } } },
+        { $match: { hidden: false, type: { $ne: 'run' } }, effective: true },
         {
             $group: {
                 _id: { domainId: '$domainId', pid: '$pid', uid: '$uid' },
diff --git a/packages/hydrooj/src/script/updateFilelist.ts b/packages/hydrooj/src/script/updateFilelist.ts
index ad13f710..f2cafd05 100644
--- a/packages/hydrooj/src/script/updateFilelist.ts
+++ b/packages/hydrooj/src/script/updateFilelist.ts
@@ -1,5 +1,5 @@
 import storage from '../service/storage';
-import { iterateAllProblem, iterateAllProblemInDomain } from '../upgrade';
+import { iterateAllProblem, iterateAllProblemInDomain } from '../pipelineUtils';
 
 export const description = 'Sync problem filelist from s3 service';
 
diff --git a/packages/hydrooj/src/upgrade.ts b/packages/hydrooj/src/upgrade.ts
index f738743a..1a6d6799 100644
--- a/packages/hydrooj/src/upgrade.ts
+++ b/packages/hydrooj/src/upgrade.ts
@@ -1,61 +1,28 @@
 /* eslint-disable @typescript-eslint/no-unused-vars */
 /* eslint-disable no-await-in-loop */
-import { ObjectID } from 'mongodb';
+import { FilterQuery, ObjectID } from 'mongodb';
 import AdmZip from 'adm-zip';
 import Queue from 'p-queue';
 import yaml from 'js-yaml';
 import { Progress } from './ui';
 import { Logger } from './logger';
-import { DomainDoc } from './loader';
 import { streamToBuffer } from './utils';
+import { iterateAllDomain, iterateAllProblem } from './pipelineUtils';
 import gridfs from './service/gridfs';
 import storage from './service/storage';
 import db from './service/db';
-import problem, { Field, Pdoc } from './model/problem';
+import problem from './model/problem';
 import domain from './model/domain';
 import * as document from './model/document';
 import * as system from './model/system';
 import difficultyAlgorithm from './lib/difficulty';
+import { STATUS } from './model/builtin';
+import RecordModel from './model/record';
+import { Rdoc } from './interface';
 
 const logger = new Logger('upgrade');
 type UpgradeScript = void | (() => Promise<boolean | void>);
 
-export async function iterateAllDomain(cb: (ddoc: DomainDoc, current?: number, total?: number) => Promise<any>) {
-    const ddocs = await domain.getMulti().project({ _id: 1, owner: 1 }).toArray();
-    for (const i in ddocs) await cb(ddocs[i], +i, ddocs.length);
-}
-
-interface PartialPdoc extends Pdoc {
-    [key: string]: any,
-}
-
-export async function iterateAllProblemInDomain(
-    domainId: string,
-    fields: (Field | string)[],
-    cb: (pdoc: PartialPdoc, current?: number, total?: number) => Promise<any>,
-) {
-    if (!fields.includes('domainId')) fields.push('domainId');
-    if (!fields.includes('docId')) fields.push('docId');
-    const cursor = problem.getMulti(domainId, {}, fields as any);
-    const total = await problem.getMulti(domainId, {}).count();
-    let i = 0;
-    while (await cursor.hasNext()) {
-        const doc = await cursor.next();
-        i++;
-        const res = await cb(doc, i, total);
-        if (res) await problem.edit(doc.domainId, doc.docId, res);
-    }
-}
-
-export async function iterateAllProblem(
-    fields: (Field | string)[],
-    cb: (pdoc: PartialPdoc, current?: number, total?: number) => Promise<any>,
-) {
-    await iterateAllDomain(async (d) => {
-        await iterateAllProblemInDomain(d._id, fields, cb);
-    });
-}
-
 const scripts: UpgradeScript[] = [
     // Mark as used
     null,
@@ -262,6 +229,36 @@ const scripts: UpgradeScript[] = [
         });
         return true;
     },
+    async function _19_20() {
+        const data = db.collection('record').aggregate([
+            { $match: { hidden: false, type: { $ne: 'run' } } },
+            {
+                $group: {
+                    _id: { domainId: '$domainId', pid: '$pid', uid: '$uid' },
+                    nAccept: {
+                        $sum: {
+                            $cond: [{ $eq: ['$status', STATUS.STATUS_ACCEPTED] }, 1, 0],
+                        },
+                    },
+                },
+            },
+        ]);
+        while (await data.hasNext()) {
+            const d: any = await data.next();
+            logger.info('%o', d);
+            const filter: FilterQuery<Rdoc> = { domainId: d._id.domainId, pid: d._id.pid, uid: d._id.uid };
+            if (d.nAccept) {
+                const [first] = await db.collection('record')
+                    .find({ ...filter, status: STATUS.STATUS_ACCEPTED })
+                    .sort({ _id: 1 }).limit(1)
+                    .project({ _id: 1 })
+                    .toArray();
+                filter._id = { $lte: first._id };
+            }
+            await db.collection('record').updateMany(filter, { $set: { effective: true } });
+        }
+        return true;
+    },
 ];
 
 export default scripts;
diff --git a/packages/migrate-vijos/package.json b/packages/migrate-vijos/package.json
index be11b130..cd687da6 100644
--- a/packages/migrate-vijos/package.json
+++ b/packages/migrate-vijos/package.json
@@ -6,9 +6,9 @@
     "author": "undefined <i@undefined.moe>",
     "license": "MIT",
     "devDependencies": {
-        "@types/mongodb": "^3.6.11"
+        "@types/mongodb": "^3.6.12"
     },
     "dependencies": {
         "mongodb": "^3.6.5"
     }
-}
\ No newline at end of file
+}
diff --git a/packages/sonic/package.json b/packages/sonic/package.json
index 59316458..c54ef0a6 100644
--- a/packages/sonic/package.json
+++ b/packages/sonic/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@hydrooj/sonic",
-    "version": "1.0.0",
+    "version": "1.0.1",
     "description": "Sonic search service",
     "main": "service.js",
     "typings": "service.d.ts",
@@ -10,4 +10,4 @@
     "dependencies": {
         "sonic-channel": "^1.2.6"
     }
-}
\ No newline at end of file
+}
diff --git a/packages/sonic/script.ts b/packages/sonic/script.ts
index 0ddd4ebe..89be81bf 100644
--- a/packages/sonic/script.ts
+++ b/packages/sonic/script.ts
@@ -1,4 +1,4 @@
-import { iterateAllProblem, iterateAllProblemInDomain } from 'hydrooj/dist/upgrade';
+import { iterateAllProblem, iterateAllProblemInDomain } from 'hydrooj/dist/pipelineUtils';
 import sonic from './service';
 
 export const description = 'Sonic problem search re-index';
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index d12e8a2f..9d06361d 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -8,7 +8,7 @@
   "devDependencies": {
     "@babel/cli": "^7.13.14",
     "@babel/core": "^7.13.14",
-    "@babel/eslint-parser": "7.13.10",
+    "@babel/eslint-parser": "7.13.14",
     "@babel/plugin-proposal-class-properties": "^7.13.0",
     "@babel/plugin-proposal-export-namespace-from": "^7.12.13",
     "@babel/plugin-proposal-function-sent": "^7.12.13",
@@ -26,14 +26,14 @@
     "acorn": "^8.0.5",
     "acorn-stage3": "^4.0.0",
     "acorn-walk": "^8.0.2",
-    "astring": "^1.6.2",
+    "astring": "^1.7.3",
     "autoprefixer": "^9.8.6",
     "babel-loader": "^8.2.2",
     "babel-plugin-lodash": "^3.3.4",
     "babel-plugin-prismjs": "^2.0.1",
     "base-64": "^1.0.0",
     "chalk": "^4.1.0",
-    "classnames": "^2.3.0",
+    "classnames": "^2.3.1",
     "clipboard": "^2.0.8",
     "codemirror": "^5.59.4",
     "copy-webpack-plugin": "^6.1.1",
@@ -105,7 +105,7 @@
   "dependencies": {
     "98.css": "^0.1.16",
     "js-yaml": "^4.0.0",
-    "katex": "^0.13.0",
+    "katex": "^0.13.1",
     "lodash": "^4.17.21",
     "markdown-it": "^12.0.4",
     "markdown-it-anchor": "^7.1.0",