Prepare v1.6.0 release

Author: clue

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.6.0 (2021-06-21)
+
+*   Feature: Add support for legacy `SPF` record type.
+    (#178 by @akondas and @clue)
+
+*   Fix: Fix integer overflow for TCP/IP chunk size on 32 bit platforms.
+    (#177 by @clue)
+
 ## 1.5.0 (2021-03-05)
 
 *   Feature: Improve error reporting when query fails, include domain and query type and DNS server address where applicable.

README.md

@@ -425,7 +425,7 @@ This project follows [SemVer](https://semver.org/).
 This will install the latest supported version:
 
 ```bash
-$ composer require react/dns:^1.5
+$ composer require react/dns:^1.6
 ```
 
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.