From 4680f5c69666368ec68e8fd7dfdc992ff7ce9768 Mon Sep 17 00:00:00 2001
From: Sertii <36940685+Sreini@users.noreply.github.com>
Date: Mon, 16 Feb 2026 07:34:38 +0100
Subject: [PATCH 1/2] release: 3.6.10

---
 readme.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/readme.txt b/readme.txt
index 565e7c67..aa6e9ea1 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Donate link: https://tinypng.com/
 Tags: compress images, compression, image size, page speed, performance
 Requires at least: 4.0
 Tested up to: 6.9
-Stable tag: 3.6.9
+Stable tag: 3.6.10
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 

From 0c3158d2a666267d1cffc0eb100346cfb096aa6f Mon Sep 17 00:00:00 2001
From: tijmen <tijmenbruggeman@gmail.com>
Date: Tue, 7 Apr 2026 21:06:36 +0200
Subject: [PATCH 2/2] copy sizes attributes from original img

---
 src/class-tiny-source-base.php |  5 +++++
 test/unit/TinyPictureTest.php  | 15 +++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/src/class-tiny-source-base.php b/src/class-tiny-source-base.php
index 859b208d..c6f3cff5 100644
--- a/src/class-tiny-source-base.php
+++ b/src/class-tiny-source-base.php
@@ -240,6 +240,11 @@ protected function create_alternative_sources( $original_source_html ) {
 						$source_attr_parts[ $attr ] = $attr_value;
 					}
 				}
+			} else {
+				$sizes_value = $this->get_attribute_value( $original_source_html, 'sizes' );
+				if ( $sizes_value ) {
+					$source_attr_parts['sizes'] = $sizes_value;
+				}
 			}
 
 			$source_attr_parts['type'] = $mimetype;
diff --git a/test/unit/TinyPictureTest.php b/test/unit/TinyPictureTest.php
index 68ba2959..95298d21 100644
--- a/test/unit/TinyPictureTest.php
+++ b/test/unit/TinyPictureTest.php
@@ -366,6 +366,21 @@ public function test_image_without_src() {
         $this->assertSame($expected, $output);
     }
 
+    /**
+     * sizes attribute on <img> also have to be set  to <source> elements
+     */
+    public function test_img_sizes_attribute_is_propagated_to_sources() {
+        $this->wp->createImage(1000, '2026/04', 'test-320w.webp');
+        $this->wp->createImage(1000, '2026/04', 'test-640w.webp');
+        $this->wp->createImage(1000, '2026/04', 'test.webp');
+
+        $input = '<img srcset="/wp-content/uploads/2026/04/test-320w.jpg 320w, /wp-content/uploads/2026/04/test-640w.jpg 640w" sizes="(max-width: 600px) 320px, 640px" src="/wp-content/uploads/2026/04/test.jpg">';
+        $expected = '<picture><source srcset="/wp-content/uploads/2026/04/test-320w.webp 320w, /wp-content/uploads/2026/04/test-640w.webp 640w" sizes="(max-width: 600px) 320px, 640px" type="image/webp" /><img srcset="/wp-content/uploads/2026/04/test-320w.jpg 320w, /wp-content/uploads/2026/04/test-640w.jpg 640w" sizes="(max-width: 600px) 320px, 640px" src="/wp-content/uploads/2026/04/test.jpg"></picture>';
+        $output = $this->tiny_picture->replace_sources($input);
+
+        $this->assertSame($expected, $output);
+    }
+
     /**
      * Images with only a srcset are valid and will be wrapped
      */