diff --git a/cli/delete-invalid-users.js b/cli/delete-invalid-users.js
deleted file mode 100644
index 41bbc2baba..0000000000
--- a/cli/delete-invalid-users.js
+++ /dev/null
@@ -1,40 +0,0 @@
-const { default: User, deleteUser } = require('../built/models/user');
-const { default: zip } = require('@prezzemolo/zip')
-
-const migrate = async (user) => {
-	try {
-		await deleteUser(user._id);
-		return true;
-	} catch (e) {
-		return false;
-	}
-}
-
-async function main() {
-	const count = await User.count({
-		uri: /#/
-	});
-
-	const dop = 1
-	const idop = ((count - (count % dop)) / dop) + 1
-
-	return zip(
-		1,
-		async (time) => {
-			console.log(`${time} / ${idop}`)
-			const doc = await User.find({
-				uri: /#/
-			}, {
-				limit: dop, skip: time * dop
-			})
-			return Promise.all(doc.map(migrate))
-		},
-		idop
-	).then(a => {
-		const rv = []
-		a.forEach(e => rv.push(...e))
-		return rv
-	})
-}
-
-main().then(console.dir).catch(console.error)
diff --git a/package.json b/package.json
index 8bde6935b8..c84f01fc51 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
 	"name": "misskey",
 	"author": "syuilo <i@syuilo.com>",
-	"version": "8.14.0",
-	"clientVersion": "1.0.9022",
+	"version": "8.15.0",
+	"clientVersion": "1.0.9031",
 	"codename": "nighthike",
 	"main": "./built/index.js",
 	"private": true,
diff --git a/src/client/app/common/views/widgets/donation.vue b/src/client/app/common/views/widgets/donation.vue
index 470576d5e6..b1352e803e 100644
--- a/src/client/app/common/views/widgets/donation.vue
+++ b/src/client/app/common/views/widgets/donation.vue
@@ -4,7 +4,7 @@
 		<h1>%fa:heart%%i18n:@title%</h1>
 		<p>
 			{{ '%i18n:@text%'.substr(0, '%i18n:@text%'.indexOf('{')) }}
-			<a href="https://syuilo.com">@syuilo</a>
+			<a :href="meta.maintainer.url">{{ meta.maintainer.name }}</a>
 			{{ '%i18n:@text%'.substr('%i18n:@text%'.indexOf('}') + 1) }}
 		</p>
 	</article>
@@ -15,6 +15,17 @@
 import define from '../../../common/define-widget';
 export default define({
 	name: 'donation'
+}).extend({
+	data() {
+		return {
+			meta: null
+		};
+	},
+	created() {
+		(this as any).os.getMeta().then(meta => {
+			this.meta = meta;
+		});
+	}
 });
 </script>
 
diff --git a/src/config/load.ts b/src/config/load.ts
index 1c59f82b3e..8929cf8d3e 100644
--- a/src/config/load.ts
+++ b/src/config/load.ts
@@ -53,5 +53,5 @@ export default function load() {
 }
 
 function normalizeUrl(url: string) {
-	return url[url.length - 1] === '/' ? url.substr(0, url.length - 1) : url;
+	return url.endsWith('/') ? url.substr(0, url.length - 1) : url;
 }
diff --git a/src/models/stats.ts b/src/models/stats.ts
index 3041d3852b..326bfacc80 100644
--- a/src/models/stats.ts
+++ b/src/models/stats.ts
@@ -2,7 +2,8 @@ import * as mongo from 'mongodb';
 import db from '../db/mongodb';
 
 const Stats = db.get<IStats>('stats');
-Stats.createIndex({ date: -1 }, { unique: true });
+Stats.dropIndex({ date: -1 }); // 後方互換性のため
+Stats.createIndex({ span: -1, date: -1 }, { unique: true });
 export default Stats;
 
 export interface IStats {
diff --git a/src/server/api/service/twitter.ts b/src/server/api/service/twitter.ts
index 8c668e832a..aad2846bb4 100644
--- a/src/server/api/service/twitter.ts
+++ b/src/server/api/service/twitter.ts
@@ -14,7 +14,7 @@ function getUserToken(ctx: Koa.Context) {
 
 function compareOrigin(ctx: Koa.Context) {
 	function normalizeUrl(url: string) {
-		return url[url.length - 1] === '/' ? url.substr(0, url.length - 1) : url;
+		return url.endsWith('/') ? url.substr(0, url.length - 1) : url;
 	}
 
 	const referer = ctx.headers['referer'];
diff --git a/webpack/loaders/replace.js b/webpack/loaders/replace.js
index fd6bb3617b..9f4825e18c 100644
--- a/webpack/loaders/replace.js
+++ b/webpack/loaders/replace.js
@@ -7,7 +7,7 @@ function trim(text, g) {
 export default function(src) {
 	const fn = options => {
 		const search = options.search;
-		const g = search[search.length - 1] == 'g';
+		const g = search.endsWith('g');
 		const file = this.resourcePath.replace(/\\/g, '/');
 		const replace = options.i18n ? global[options.replace].bind(null, {
 			src: file,