diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf706c4..b647644 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## 0.5.5 (2021-07-19)
+
+*   Feature: Simplify usage by supporting new default loop.
+    (#134 by @clue)
+
+    ```php
+    // old (still supported)
+    $factory = new React\MySQL\Factory($loop);
+
+    // new (using default loop)
+    $factory = new React\MySQL\Factory();
+    ```
+
+*   Improve test setup, use GitHub actions for continuous integration (CI) and fix minor typo.
+    (#132 by @SimonFrings and #129 by @mmoreram)
+
 ## 0.5.4 (2019-05-21)
 
 *   Fix: Do not start idle timer when lazy connection is already closed.
diff --git a/README.md b/README.md
index 9f1a9fc..f2e83a8 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,3 @@
-
 # MySQL
 
 [![CI status](https://github.com/friends-of-reactphp/mysql/workflows/CI/badge.svg)](https://github.com/friends-of-reactphp/mysql/actions)
@@ -486,7 +485,7 @@ The recommended way to install this library is [through Composer](https://getcom
 This will install the latest supported version:
 
 ```bash
-$ composer require react/mysql:^0.5.4
+$ composer require react/mysql:^0.5.5
 ```
 
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.