Update for release 4.0.0

CHANGELOG.md

@@ -1,10 +1,13 @@
 eZ Platform Site API changelog
 ==============================
 
-4.0.0 (Unreleased)
+4.0.0 (19.09.2020)
 ------------------
 
-[`3.5.0...4.0.0`](https://github.com/netgen/ezplatform-site-api/compare/master...4.0)
+[`3.5.0...4.0.0`](https://github.com/netgen/ezplatform-site-api/compare/3.5.0...4.0.0)
+
+Version 4.0.0 is a major release where all previous deprecations have been removed and several breaking changes have
+been introduced. For upgrade instructions see https://docs.netgen.io/projects/site-api/en/4.0.0/upgrades/upgrade_350_400.html.
 
 ### Added
 * Autowired controllers by @MarioBlazek ([#165](https://github.com/netgen/ezplatform-site-api/pull/165))

README.md

@@ -6,8 +6,8 @@
 [![Read the Docs](https://img.shields.io/readthedocs/netgen-ezplatform-site-api)](https://docs.netgen.io/projects/site-api/en/latest/)
 [![Downloads](https://img.shields.io/packagist/dt/netgen/ezplatform-site-api.svg?style=popout)](https://packagist.org/packages/netgen/ezplatform-site-api)
 [![Latest stable](https://img.shields.io/packagist/v/netgen/ezplatform-site-api.svg?style=popout)](https://packagist.org/packages/netgen/ezplatform-site-api)
-[![PHP](https://img.shields.io/badge/PHP-%E2%89%A5%207.1-%238892BF.svg)](https://secure.php.net/)
-[![eZ](https://img.shields.io/badge/eZ%20Platform-%E2%89%A5%202.4-orange.svg?style=popout)](https://ezplatform.com/)
+[![PHP](https://img.shields.io/badge/PHP-%E2%89%A5%207.3-%238892BF.svg)](https://secure.php.net/)
+[![eZ](https://img.shields.io/badge/eZ%20Platform-%E2%89%A5%203.1-orange.svg?style=popout)](https://ezplatform.com/)
 
 </div>
 

composer.json

@@ -42,7 +42,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "4.0-dev"
+            "dev-master": "4.1-dev"
         }
     },
     "scripts": {