docs: update changelog

CHANGELOG.md

@@ -1,3 +1,44 @@
+# [4.5.0](https://github.com/webpack/webpack-cli/compare/webpack-cli@4.4.0...webpack-cli@4.5.0) (2021-02-02)
+
+### Notes
+
+-   now you can use `webpack.config.mjs` and `webpack.config.js` with `{ "type": "module" }` in `package.json`
+-   you can avoid using the `cross-env` package:
+
+Before:
+
+```json
+{
+    "scripts": {
+        "build": "cross-env NODE_ENV=production webpack --config build/webpack.config.js"
+    }
+}
+```
+
+Now (you can remove the `cross-env` if you don't use it somewhere else):
+
+```json
+{
+    "scripts": {
+        "build": "webpack --node-env=production --config build/webpack.config.js"
+    }
+}
+```
+
+-   the `mode` option respect the `--node-env` option if you don't set the `mode` option explicit using CLI options or in configuration(s), i.e. `--node-env production` set `process.env.NODE_ENV` and `mode` to `production`
+
+### Bug Fixes
+
+-   avoid deprecation message ([9d6dbda](https://github.com/webpack/webpack-cli/commit/9d6dbda93da167a1aaad03f599105a4fe7849dc3))
+-   error message on invalid plugin options ([#2380](https://github.com/webpack/webpack-cli/issues/2380)) ([f9ce1d3](https://github.com/webpack/webpack-cli/commit/f9ce1d30b83bf0e0b4d91498d012c13c208e6e67))
+-   improve description for 'configtest' command ([#2379](https://github.com/webpack/webpack-cli/issues/2379)) ([311bae3](https://github.com/webpack/webpack-cli/commit/311bae336d83424c800e553b6ef40242d967685c))
+
+### Features
+
+-   add the `--node-env` flag ([#2388](https://github.com/webpack/webpack-cli/issues/2388)) ([e5126f1](https://github.com/webpack/webpack-cli/commit/e5126f10b6622437c0541c25be2a610a82c1df04))
+-   entries syntax ([#2369](https://github.com/webpack/webpack-cli/issues/2369)) ([6b31614](https://github.com/webpack/webpack-cli/commit/6b3161479578f572f803f579c7e71073eb797184))
+-   support ES module configuration format ([#2381](https://github.com/webpack/webpack-cli/issues/2381)) ([aebdbbc](https://github.com/webpack/webpack-cli/commit/aebdbbc1f6e2761e7821cb3660bea686cce7b587))
+
 # [4.4.0](https://github.com/webpack/webpack-cli/compare/webpack-cli@4.3.1...webpack-cli@4.4.0) (2021-01-19)
 
 ### Bug Fixes