Prepare release

README.md

@@ -4,18 +4,18 @@ PHPUnit is a programmer-oriented testing framework for PHP. It is an instance of
 
 [![Latest Stable Version](https://img.shields.io/packagist/v/phpunit/phpunit.svg?style=flat-square)](https://packagist.org/packages/phpunit/phpunit)
 [![Minimum PHP Version](https://img.shields.io/badge/php-%3E%3D%207.3-8892BF.svg?style=flat-square)](https://php.net/)
-[![Build Status](https://img.shields.io/travis/sebastianbergmann/phpunit/master.svg?style=flat-square)](https://phpunit.de/build-status.html)
-[![CI Status](https://github.com/sebastianbergmann/phpunit/workflows/CI/badge.svg)](https://github.com/sebastianbergmann/phpunit/actions)
+[![Build Status](https://img.shields.io/travis/sebastianbergmann/phpunit/9.0.svg?style=flat-square)](https://phpunit.de/build-status.html)
+[![CI Status](https://github.com/sebastianbergmann/phpunit/workflows/CI/badge.svg?branch=9.0)](https://github.com/sebastianbergmann/phpunit/actions)
 [![Type Coverage](https://shepherd.dev/github/sebastianbergmann/phpunit/coverage.svg)](https://shepherd.dev/github/sebastianbergmann/phpunit)
 
 ## Installation
 
 We distribute a [PHP Archive (PHAR)](https://php.net/phar) that has all required (as well as some optional) dependencies of PHPUnit 9.0 bundled in a single file:
 
 ```bash
-$ wget https://phar.phpunit.de/phpunit-nightly.phar
+$ wget https://phar.phpunit.de/phpunit-9.0.phar
 
-$ php phpunit-nightly.phar --version
+$ php phpunit-9.0.phar --version
 ```
 
 Alternatively, you may use [Composer](https://getcomposer.org/) to download and install PHPUnit as well as its dependencies. Please refer to the "[Getting Started](https://phpunit.de/getting-started-with-phpunit.html)" guide for details on how to install PHPUnit.

composer.json

@@ -19,7 +19,6 @@
     "support": {
         "issues": "https://github.com/sebastianbergmann/phpunit/issues"
     },
-    "minimum-stability": "dev",
     "prefer-stable": true,
     "require": {
         "php": "^7.3",

src/Runner/Version.php

@@ -33,7 +33,7 @@ public static function id(): string
         }
 
         if (self::$version === '') {
-            self::$version = (new VersionId('9.0', \dirname(__DIR__, 2)))->getVersion();
+            self::$version = (new VersionId('9.0.0', \dirname(__DIR__, 2)))->getVersion();
         }
 
         return self::$version;