auto updated documentation

DavertMik · DavertMik · commit bfd7553e5c99 · 2018-02-28T15:44:24.000+02:00
diff --git a/changelog.markdown b/changelog.markdown
@@ -14,12 +14,16 @@ title: Codeception Changelog
 * Internal API refactored:
   * Modern PHP class names used internally
   * Moved PHPUnit related classes to [codeception/phpunit-wrapper](https://github.com/Codeception/phpunit-wrapper) package.
+  * Removed `shims` for underscore PHPUnit classes > namespaced PHP classes
 * Cest hooks behavior changed (by **[fffilimonov](https://github.com/fffilimonov)**):
   * `_failed` called when test fails
   * `_passed` called when tests is successful
   * `_after` is called for failing and successful tests   
 
-#### 2.3.9
+**Upgrade Notice**: If you face issues with underscore PHPUnit class names (like PHPUnit_Framework_Assert) you have two options:
+
+* Lock version for PHPUnit in composer.json: "phpunit/phpunit":"^5.0.0"
+* Update your codebase and replace underscore PHPUnit class names to namespaced (PHPUnit 6+ API) #### 2.3.9
 
 * Added `Codeception\Step\Argument\PasswordArgument` to pass sensitive data into tests:
 
