From 1287cb61813006fcc162dab454384e620a285fed Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov.ru@gmail.com>
Date: Fri, 12 Jul 2024 03:36:15 +0000
Subject: [PATCH] KSES: Add `opacity` to the list of safe CSS properties.

Original PR from Gutenberg repository:
* [https://github.com/WordPress/gutenberg/pull/59891 #59891 Update overlay step function in cover block]

Reference: [https://developer.mozilla.org/en-US/docs/Web/CSS/opacity MDN Web Docs: opacity].

Props sunil25393, wildworks, poena, Mamaduka, presstoke.
Fixes #61536.
Built from https://develop.svn.wordpress.org/trunk@58709


git-svn-id: http://core.svn.wordpress.org/trunk@58111 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/kses.php    | 1 +
 wp-includes/version.php | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/wp-includes/kses.php b/wp-includes/kses.php
index 0ef5803ebc..cd30d845f8 100644
--- a/wp-includes/kses.php
+++ b/wp-includes/kses.php
@@ -2526,6 +2526,7 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
 			'list-style-type',
 			'object-fit',
 			'object-position',
+			'opacity',
 			'overflow',
 			'vertical-align',
 			'writing-mode',
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 92f6ddcde5..c555793a5c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-alpha-58708';
+$wp_version = '6.7-alpha-58709';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.