add new CHANGELOG version

Author: xr0master

CHANGELOG.md

@@ -1,29 +1,42 @@
+## 4.0.0
+
+- The flutter version of the SDK packages has been adjusted to global version 4. The SDK has been completely refactored. New data validation has been added to avoid wasting quota. A set of new tests has been added. Improved test code coverage.
+
+- Added [blockList option](https://www.emailjs.com/docs/sdk/options/#blocklist) to block requests for unwanted variable values
+- Added [limitrate option](https://www.emailjs.com/docs/sdk/options/#limitrate) to install the throttle. For persistence, the shared_preferences package is used.
+
 ## 1.3.0
-* Fix closed client [issue #1](https://github.com/emailjs-com/emailjs-flutter/issues/1)
+
+- Fix closed client [issue #1](https://github.com/emailjs-com/emailjs-flutter/issues/1)
 
 ## 1.2.1
-* Fix the environment SDK version
+
+- Fix the environment SDK version
 
 ## 1.2.0
-* Update packages
+
+- Update packages
 
 ## 1.1.0
-* Improve README.md
+
+- Improve README.md
 
 ## 1.0.0
-* Add support for the private key
-* Instead of the public key argument, the settings object is passed, where the public and private keys can be set.
-Check out the documentation and examples.
+
+- Add support for the private key
+- Instead of the public key argument, the settings object is passed, where the public and private keys can be set.
+  Check out the documentation and examples.
 
 ## 0.0.3
-* re-format examples code
+
+- re-format examples code
 
 ## 0.0.2
 
-* Score fixes
-* Added examples
-* Dart formatter
+- Score fixes
+- Added examples
+- Dart formatter
 
 ## 0.0.1
 
-* Official EmailJS SDK for Flutter
+- Official EmailJS SDK for Flutter