[pull] master from php:master

.github/nightly_matrix.php

@@ -1,7 +1,8 @@
 <?php
 
 const BRANCHES = [
-    ['ref' => 'master', 'version' => [8, 5]],
+    ['ref' => 'master', 'version' => [8, 6]],
+    ['ref' => 'PHP-8.5', 'version' => [8, 5]],
     ['ref' => 'PHP-8.4', 'version' => [8, 4]],
     ['ref' => 'PHP-8.3', 'version' => [8, 3]],
     ['ref' => 'PHP-8.2', 'version' => [8, 2]],

CONTRIBUTING.md

@@ -357,7 +357,8 @@ Currently, we have the following branches in use:
 
 | Branch    |           |
 | --------- | --------- |
-| master    | Active development branch for PHP 8.5, which is open for backwards incompatible changes and major internal API changes. |
+| master    | Active development branch for PHP 8.6, which is open for backwards incompatible changes and major internal API changes. |
+| PHP-8.5   | Is used to release the PHP 8.5.x series. This is a current stable version and is open for bugfixes only. |
 | PHP-8.4   | Is used to release the PHP 8.4.x series. This is a current stable version and is open for bugfixes only. |
 | PHP-8.3   | Is used to release the PHP 8.3.x series. This is a current stable version and is open for bugfixes only. |
 | PHP-8.2   | Is used to release the PHP 8.2.x series. This is an old stable version and is open for security fixes only. |