General: Add MariaDB in the readme.html requirements.

This change updates the WordPress `readme.html` file to reflect WordPress.org requirements: as of WordPress 5.9, MariaDB 10.1 and higher versions are supported by WP. See https://wordpress.org/about/requirements/. 

Fixes #41490.

Built from https://develop.svn.wordpress.org/trunk@52319


git-svn-id: http://core.svn.wordpress.org/trunk@51911 1a063a9b-81f0-0310-95a4-ce76da25c4cd

readme.html

@@ -51,14 +51,14 @@ <h2>Migrating from other systems</h2>
 
 <h2>System Requirements</h2>
 <ul>
-	<li><a href="https://secure.php.net/">PHP</a> version <strong>5.6.20</strong> or higher.</li>
-	<li><a href="https://www.mysql.com/">MySQL</a> version <strong>5.0</strong> or higher.</li>
+	<li><a href="https://secure.php.net/">PHP</a> version <strong>5.6.20</strong> or greater.</li>
+	<li><a href="https://www.mysql.com/">MySQL</a> version <strong>5.0</strong> or greater.</li>
 </ul>
 
 <h3>Recommendations</h3>
 <ul>
-	<li><a href="https://secure.php.net/">PHP</a> version <strong>7.4</strong> or higher.</li>
-	<li><a href="https://www.mysql.com/">MySQL</a> version <strong>5.6</strong> or higher.</li>
+	<li><a href="https://secure.php.net/">PHP</a> version <strong>7.4</strong> or greater.</li>
+	<li><a href="https://www.mysql.com/">MySQL</a> version <strong>5.6</strong> or greater OR <a href="https://mariadb.org/">MariaDB</a> version 10.1 or greater.</li>
 	<li>The <a href="https://httpd.apache.org/docs/2.2/mod/mod_rewrite.html">mod_rewrite</a> Apache module.</li>
 	<li><a href="https://wordpress.org/news/2016/12/moving-toward-ssl/">HTTPS</a> support.</li>
 	<li>A link to <a href="https://wordpress.org/">wordpress.org</a> on your site.</li>

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-beta1-52318';
+$wp_version = '5.9-beta1-52319';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.