optimize bundle size for es, cjs

.babelrc

@@ -1,10 +1,15 @@
 {
   "env": {
     "development": {
-      "presets": ["@babel/preset-env", "@babel/react"]
+      "presets": ["@babel/preset-env", "@babel/react"],
+      "plugins": ["@babel/plugin-transform-runtime"]
     },
     "jsnext": {
-      "presets": [["@babel/preset-env", { "modules": false }], "@babel/react"]
+      "presets": [
+        ["@babel/preset-env", { "modules": false, "useBuiltIns": false }],
+        "@babel/react"
+      ],
+      "plugins": ["@babel/plugin-transform-runtime"]
     }
   }
 }

CHANGELOG.md

@@ -1,3 +1,7 @@
+### 8.0.1
+
+- use @babel/plugin-transform-runtime
+
 ### 8.0.0
 
 - translate HOC was renamed to "withNamespaces" as it controls which namespaces should be loaded

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-i18next",
-  "version": "8.0.0",
+  "version": "8.0.1",
   "description": "Internationalization for react done right. Using the i18next i18n ecosystem.",
   "main": "dist/commonjs/index.js",
   "jsnext:main": "dist/es/index.js",
@@ -23,6 +23,7 @@
     "url": "https://github.com/i18next/react-i18next.git"
   },
   "dependencies": {
+    "@babel/runtime": "^7.1.2",
     "create-react-context": "0.2.3",
     "hoist-non-react-statics": "3.0.1",
     "html-parse-stringify2": "2.0.1",
@@ -34,6 +35,7 @@
     "@babel/plugin-proposal-async-generator-functions": "^7.0.0",
     "@babel/plugin-proposal-object-rest-spread": "^7.0.0",
     "@babel/plugin-transform-modules-commonjs": "^7.0.0",
+    "@babel/plugin-transform-runtime": "^7.1.0",
     "@babel/polyfill": "^7.0.0",
     "@babel/preset-env": "^7.0.0",
     "@babel/preset-react": "^7.0.0",