diff --git a/decls/i18n.js b/decls/i18n.js
index aff10335c..b192da890 100644
--- a/decls/i18n.js
+++ b/decls/i18n.js
@@ -82,6 +82,7 @@ declare type I18nOptions = {
   fallbackLocale?: FallbackLocale,
   messages?: LocaleMessages,
   dateTimeFormats?: DateTimeFormats,
+  datetimeFormats?: DateTimeFormats,
   numberFormats?: NumberFormats,
   formatter?: Formatter,
   missing?: MissingHandler,
diff --git a/package.json b/package.json
index f314e1e86..0a8c5e575 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "babel-plugin-istanbul": "^6.0.0",
     "babel-preset-power-assert": "^3.0.0",
     "buble": "^0.19.3",
-    "chromedriver": "^92.0.0",
+    "chromedriver": "^93.0.0",
     "core-js": "^3.6.5",
     "cross-env": "^7.0.2",
     "cross-spawn": "^7.0.3",
diff --git a/src/index.js b/src/index.js
index e381af34e..1e39c4978 100644
--- a/src/index.js
+++ b/src/index.js
@@ -82,7 +82,7 @@ export default class VueI18n {
       ? false
       : options.fallbackLocale || 'en-US'
     const messages: LocaleMessages = options.messages || {}
-    const dateTimeFormats = options.dateTimeFormats || {}
+    const dateTimeFormats = options.dateTimeFormats || options.datetimeFormats || {}
     const numberFormats = options.numberFormats || {}
 
     this._vm = null
@@ -232,7 +232,7 @@ export default class VueI18n {
   }): void {
     const silent = Vue.config.silent
     Vue.config.silent = true
-    this._vm = new Vue({ data })
+    this._vm = new Vue({ data, __VUE18N__INSTANCE__: true })
     Vue.config.silent = silent
   }
 
diff --git a/src/install.js b/src/install.js
index 62edbc2db..198ecb670 100644
--- a/src/install.js
+++ b/src/install.js
@@ -1,13 +1,13 @@
 import { warn } from './util'
 import extend from './extend'
-import mixin from './mixin'
+import defineMixin from './mixin'
 import interpolationComponent from './components/interpolation'
 import numberComponent from './components/number'
 import { bind, update, unbind } from './directive'
 
 export let Vue
 
-export function install (_Vue) {
+export function install (_Vue, options = { bridge: false }) {
   /* istanbul ignore if */
   if (process.env.NODE_ENV !== 'production' && install.installed && _Vue === Vue) {
     warn('already installed.')
@@ -25,7 +25,7 @@ export function install (_Vue) {
   }
 
   extend(Vue)
-  Vue.mixin(mixin)
+  Vue.mixin(defineMixin(options.bridge))
   Vue.directive('t', { bind, update, unbind })
   Vue.component(interpolationComponent.name, interpolationComponent)
   Vue.component(numberComponent.name, numberComponent)
diff --git a/src/mixin.js b/src/mixin.js
index 79eaebcb1..697313d5e 100644
--- a/src/mixin.js
+++ b/src/mixin.js
@@ -3,143 +3,155 @@
 import VueI18n from './index'
 import { isPlainObject, warn, error, merge } from './util'
 
-export default {
-  beforeCreate (): void {
-    const options: any = this.$options
-    options.i18n = options.i18n || (options.__i18n ? {} : null)
-
-    if (options.i18n) {
-      if (options.i18n instanceof VueI18n) {
-        // init locale messages via custom blocks
-        if (options.__i18n) {
-          try {
-            let localeMessages = options.i18n && options.i18n.messages ? options.i18n.messages : {}
-            options.__i18n.forEach(resource => {
-              localeMessages = merge(localeMessages, JSON.parse(resource))
-            })
-            Object.keys(localeMessages).forEach((locale: Locale) => {
-              options.i18n.mergeLocaleMessage(locale, localeMessages[locale])
-            })
-          } catch (e) {
-            if (process.env.NODE_ENV !== 'production') {
-              error(`Cannot parse locale messages via custom blocks.`, e)
+/**
+ * Mixin
+ * 
+ * If `bridge` mode, empty mixin is returned,
+ * else regulary mixin implementation is returned.
+ */
+export default function defineMixin (bridge: boolean = false) {
+  function mounted (): void {
+    if (this !== this.$root && this.$options.__INTLIFY_META__ && this.$el) {
+      this.$el.setAttribute('data-intlify', this.$options.__INTLIFY_META__)
+    }
+  }
+
+  return bridge
+    ? { mounted } // delegate `vue-i18n-bridge` mixin implementation
+    : { // regulary 
+    beforeCreate (): void {
+      const options: any = this.$options
+      options.i18n = options.i18n || (options.__i18n ? {} : null)
+
+      if (options.i18n) {
+        if (options.i18n instanceof VueI18n) {
+          // init locale messages via custom blocks
+          if (options.__i18n) {
+            try {
+              let localeMessages = options.i18n && options.i18n.messages ? options.i18n.messages : {}
+              options.__i18n.forEach(resource => {
+                localeMessages = merge(localeMessages, JSON.parse(resource))
+              })
+              Object.keys(localeMessages).forEach((locale: Locale) => {
+                options.i18n.mergeLocaleMessage(locale, localeMessages[locale])
+              })
+            } catch (e) {
+              if (process.env.NODE_ENV !== 'production') {
+                error(`Cannot parse locale messages via custom blocks.`, e)
+              }
             }
           }
-        }
-        this._i18n = options.i18n
-        this._i18nWatcher = this._i18n.watchI18nData()
-      } else if (isPlainObject(options.i18n)) {
-        const rootI18n = this.$root && this.$root.$i18n && this.$root.$i18n instanceof VueI18n
-          ? this.$root.$i18n
-          : null
-        // component local i18n
-        if (rootI18n) {
-          options.i18n.root = this.$root
-          options.i18n.formatter = rootI18n.formatter
-          options.i18n.fallbackLocale = rootI18n.fallbackLocale
-          options.i18n.formatFallbackMessages = rootI18n.formatFallbackMessages
-          options.i18n.silentTranslationWarn = rootI18n.silentTranslationWarn
-          options.i18n.silentFallbackWarn = rootI18n.silentFallbackWarn
-          options.i18n.pluralizationRules = rootI18n.pluralizationRules
-          options.i18n.preserveDirectiveContent = rootI18n.preserveDirectiveContent
-        }
+          this._i18n = options.i18n
+          this._i18nWatcher = this._i18n.watchI18nData()
+        } else if (isPlainObject(options.i18n)) {
+          const rootI18n = this.$root && this.$root.$i18n && this.$root.$i18n instanceof VueI18n
+            ? this.$root.$i18n
+            : null
+          // component local i18n
+          if (rootI18n) {
+            options.i18n.root = this.$root
+            options.i18n.formatter = rootI18n.formatter
+            options.i18n.fallbackLocale = rootI18n.fallbackLocale
+            options.i18n.formatFallbackMessages = rootI18n.formatFallbackMessages
+            options.i18n.silentTranslationWarn = rootI18n.silentTranslationWarn
+            options.i18n.silentFallbackWarn = rootI18n.silentFallbackWarn
+            options.i18n.pluralizationRules = rootI18n.pluralizationRules
+            options.i18n.preserveDirectiveContent = rootI18n.preserveDirectiveContent
+          }
 
-        // init locale messages via custom blocks
-        if (options.__i18n) {
-          try {
-            let localeMessages = options.i18n && options.i18n.messages ? options.i18n.messages : {}
-            options.__i18n.forEach(resource => {
-              localeMessages = merge(localeMessages, JSON.parse(resource))
-            })
-            options.i18n.messages = localeMessages
-          } catch (e) {
-            if (process.env.NODE_ENV !== 'production') {
-              warn(`Cannot parse locale messages via custom blocks.`, e)
+          // init locale messages via custom blocks
+          if (options.__i18n) {
+            try {
+              let localeMessages = options.i18n && options.i18n.messages ? options.i18n.messages : {}
+              options.__i18n.forEach(resource => {
+                localeMessages = merge(localeMessages, JSON.parse(resource))
+              })
+              options.i18n.messages = localeMessages
+            } catch (e) {
+              if (process.env.NODE_ENV !== 'production') {
+                warn(`Cannot parse locale messages via custom blocks.`, e)
+              }
             }
           }
-        }
 
-        const { sharedMessages } = options.i18n
-        if (sharedMessages && isPlainObject(sharedMessages)) {
-          options.i18n.messages = merge(options.i18n.messages, sharedMessages)
-        }
+          const { sharedMessages } = options.i18n
+          if (sharedMessages && isPlainObject(sharedMessages)) {
+            options.i18n.messages = merge(options.i18n.messages, sharedMessages)
+          }
 
-        this._i18n = new VueI18n(options.i18n)
-        this._i18nWatcher = this._i18n.watchI18nData()
+          this._i18n = new VueI18n(options.i18n)
+          this._i18nWatcher = this._i18n.watchI18nData()
 
-        if (options.i18n.sync === undefined || !!options.i18n.sync) {
-          this._localeWatcher = this.$i18n.watchLocale()
-        }
+          if (options.i18n.sync === undefined || !!options.i18n.sync) {
+            this._localeWatcher = this.$i18n.watchLocale()
+          }
 
-        if (rootI18n) {
-          rootI18n.onComponentInstanceCreated(this._i18n)
-        }
-      } else {
-        if (process.env.NODE_ENV !== 'production') {
-          warn(`Cannot be interpreted 'i18n' option.`)
+          if (rootI18n) {
+            rootI18n.onComponentInstanceCreated(this._i18n)
+          }
+        } else {
+          if (process.env.NODE_ENV !== 'production') {
+            warn(`Cannot be interpreted 'i18n' option.`)
+          }
         }
+      } else if (this.$root && this.$root.$i18n && this.$root.$i18n instanceof VueI18n) {
+        // root i18n
+        this._i18n = this.$root.$i18n
+      } else if (options.parent && options.parent.$i18n && options.parent.$i18n instanceof VueI18n) {
+        // parent i18n
+        this._i18n = options.parent.$i18n
       }
-    } else if (this.$root && this.$root.$i18n && this.$root.$i18n instanceof VueI18n) {
-      // root i18n
-      this._i18n = this.$root.$i18n
-    } else if (options.parent && options.parent.$i18n && options.parent.$i18n instanceof VueI18n) {
-      // parent i18n
-      this._i18n = options.parent.$i18n
-    }
-  },
+    },
 
-  beforeMount (): void {
-    const options: any = this.$options
-    options.i18n = options.i18n || (options.__i18n ? {} : null)
+    beforeMount (): void {
+      const options: any = this.$options
+      options.i18n = options.i18n || (options.__i18n ? {} : null)
 
-    if (options.i18n) {
-      if (options.i18n instanceof VueI18n) {
-        // init locale messages via custom blocks
+      if (options.i18n) {
+        if (options.i18n instanceof VueI18n) {
+          // init locale messages via custom blocks
+          this._i18n.subscribeDataChanging(this)
+          this._subscribing = true
+        } else if (isPlainObject(options.i18n)) {
+          this._i18n.subscribeDataChanging(this)
+          this._subscribing = true
+        } else {
+          if (process.env.NODE_ENV !== 'production') {
+            warn(`Cannot be interpreted 'i18n' option.`)
+          }
+        }
+      } else if (this.$root && this.$root.$i18n && this.$root.$i18n instanceof VueI18n) {
         this._i18n.subscribeDataChanging(this)
         this._subscribing = true
-      } else if (isPlainObject(options.i18n)) {
+      } else if (options.parent && options.parent.$i18n && options.parent.$i18n instanceof VueI18n) {
         this._i18n.subscribeDataChanging(this)
         this._subscribing = true
-      } else {
-        if (process.env.NODE_ENV !== 'production') {
-          warn(`Cannot be interpreted 'i18n' option.`)
-        }
       }
-    } else if (this.$root && this.$root.$i18n && this.$root.$i18n instanceof VueI18n) {
-      this._i18n.subscribeDataChanging(this)
-      this._subscribing = true
-    } else if (options.parent && options.parent.$i18n && options.parent.$i18n instanceof VueI18n) {
-      this._i18n.subscribeDataChanging(this)
-      this._subscribing = true
-    }
-  },
+    },
 
-  mounted (): void {
-    if (this !== this.$root && this.$options.__INTLIFY_META__ && this.$el) {
-      this.$el.setAttribute('data-intlify', this.$options.__INTLIFY_META__)
-    }
-  },
+    mounted,
 
-  beforeDestroy (): void {
-    if (!this._i18n) { return }
+    beforeDestroy (): void {
+      if (!this._i18n) { return }
 
-    const self = this
-    this.$nextTick(() => {
-      if (self._subscribing) {
-        self._i18n.unsubscribeDataChanging(self)
-        delete self._subscribing
-      }
+      const self = this
+      this.$nextTick(() => {
+        if (self._subscribing) {
+          self._i18n.unsubscribeDataChanging(self)
+          delete self._subscribing
+        }
 
-      if (self._i18nWatcher) {
-        self._i18nWatcher()
-        self._i18n.destroyVM()
-        delete self._i18nWatcher
-      }
+        if (self._i18nWatcher) {
+          self._i18nWatcher()
+          self._i18n.destroyVM()
+          delete self._i18nWatcher
+        }
 
-      if (self._localeWatcher) {
-        self._localeWatcher()
-        delete self._localeWatcher
-      }
-    })
+        if (self._localeWatcher) {
+          self._localeWatcher()
+          delete self._localeWatcher
+        }
+      })
+    }
   }
 }
diff --git a/test/unit/mixin.test.js b/test/unit/mixin.test.js
index c4d900534..3290b0aac 100644
--- a/test/unit/mixin.test.js
+++ b/test/unit/mixin.test.js
@@ -1,4 +1,4 @@
-import mixin from '../../src/mixin'
+import defineMixin from '../../src/mixin'
 
 describe('mixin', () => {
   describe('beforeCreate', () => {
@@ -19,7 +19,7 @@ describe('mixin', () => {
   describe('beforeDestroy', () => {
     describe('not assign VueI18n instance', () => {
       it('should be succeeded', () => {
-        assert(mixin.beforeDestroy() === undefined)
+        assert(defineMixin().beforeDestroy() === undefined)
       })
     })
   })
diff --git a/types/index.d.ts b/types/index.d.ts
index 43c63ed02..8a73c22ce 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -157,6 +157,9 @@ export type MissingHandler = VueI18n.MissingHandler;
 export type PostTranslationHandler = VueI18n.PostTranslationHandler;
 export type IntlAvailability = VueI18n.IntlAvailability;
 export type I18nOptions = VueI18n.I18nOptions;
+export type PluignOptions = {
+  bridge?: boolean
+}
 
 export declare interface IVueI18n {
   readonly messages: VueI18n.LocaleMessages;
@@ -257,7 +260,7 @@ declare class VueI18n {
   */
   getChoiceIndex: (choice: number, choicesLength: number) => number;
 
-  static install: PluginFunction<never>;
+  static install: PluginFunction<PluignOptions>;
   static version: string;
   static availabilities: VueI18n.IntlAvailability;
 }
diff --git a/yarn.lock b/yarn.lock
index fc50e1095..c31fcc5bd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2214,12 +2214,12 @@ axios@^0.19.0:
   dependencies:
     follow-redirects "1.5.10"
 
-axios@^0.21.1:
-  version "0.21.1"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.1.tgz#22563481962f4d6bde9a76d516ef0e5d3c09b2b8"
-  integrity sha512-dKQiRHxGD9PPRIUNIWvZhPTPpl1rf/OxTYKsqKUDjBwYylTvV7SjSHJb9ratfyzM6wCdLCOYLzs73qpg5c4iGA==
+axios@^0.21.2:
+  version "0.21.4"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.4.tgz#c67b90dc0568e5c1cf2b0b858c43ba28e2eda575"
+  integrity sha512-ut5vewkiu8jjGBdqpM44XxjuCjq9LAKeHVmoVfHVzy8eHgxxq8SbAVQNovDA8mVi05kP0Ea/n/UzcSHcTJQfNg==
   dependencies:
-    follow-redirects "^1.10.0"
+    follow-redirects "^1.14.0"
 
 babel-eslint@^10.0.1, babel-eslint@^10.1.0:
   version "10.1.0"
@@ -3136,13 +3136,13 @@ chrome-trace-event@^1.0.2:
   dependencies:
     tslib "^1.9.0"
 
-chromedriver@^92.0.0:
-  version "92.0.1"
-  resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-92.0.1.tgz#3e28b7e0c9fb94d693cf74d51af0c29d57f18dca"
-  integrity sha512-LptlDVCs1GgyFNVbRoHzzy948JDVzTgGiVPXjNj385qXKQP3hjAVBIgyvb/Hco0xSEW8fjwJfsm1eQRmu6t4pQ==
+chromedriver@^93.0.0:
+  version "93.0.1"
+  resolved "https://registry.yarnpkg.com/chromedriver/-/chromedriver-93.0.1.tgz#3ed1f7baa98a754fc1788c42ac8e4bb1ab27db32"
+  integrity sha512-KDzbW34CvQLF5aTkm3b5VdlTrvdIt4wEpCzT2p4XJIQWQZEPco5pNce7Lu9UqZQGkhQ4mpZt4Ky6NKVyIS2N8A==
   dependencies:
     "@testim/chrome-version" "^1.0.7"
-    axios "^0.21.1"
+    axios "^0.21.2"
     del "^6.0.0"
     extract-zip "^2.0.1"
     https-proxy-agent "^5.0.0"
@@ -5664,10 +5664,10 @@ follow-redirects@^1.0.0:
   dependencies:
     debug "^3.0.0"
 
-follow-redirects@^1.10.0:
-  version "1.13.2"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.13.2.tgz#dd73c8effc12728ba5cf4259d760ea5fb83e3147"
-  integrity sha512-6mPTgLxYm3r6Bkkg0vNM0HTjfGrOEtsfbhagQvbxDEsEkpNhw582upBaoRZylzen6krEmxXJgt9Ju6HiI4O7BA==
+follow-redirects@^1.14.0:
+  version "1.14.4"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.4.tgz#838fdf48a8bbdd79e52ee51fb1c94e3ed98b9379"
+  integrity sha512-zwGkiSXC1MUJG/qmeIFH2HBJx9u0V46QGUe3YR1fXG8bXQxq7fLj0RjLZQ5nubr9qNJUZrH+xUcwXEoXNpfS+g==
 
 for-in@^1.0.2:
   version "1.0.2"