Prepare v0.4.19 release

Author: clue

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## 0.4.19 (2019-07-10)
+
+*   Feature: Avoid garbage references when DNS resolution rejects on legacy PHP <= 5.6.
+    (#133 by @clue)
+
 ## 0.4.18 (2019-09-07)
 
 *   Feature / Fix: Implement `CachingExecutor` using cache TTL, deprecate old `CachedExecutor`,

README.md

@@ -301,7 +301,7 @@ The recommended way to install this library is [through Composer](https://getcom
 This will install the latest supported version:
 
 ```bash
-$ composer require react/dns:^0.4.18
+$ composer require react/dns:^0.4.19
 ```
 
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.