diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/blocks/post-excerpt.php
--- a/wp/wp-includes/blocks/post-excerpt.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-includes/blocks/post-excerpt.php	Fri Sep 05 18:40:08 2025 +0200
@@ -8,6 +8,8 @@
 /**
  * Renders the `core/post-excerpt` block on the server.
  *
+ * @since 5.8.0
+ *
  * @param array    $attributes Block attributes.
  * @param string   $content    Block default content.
  * @param WP_Block $block      Block instance.
@@ -18,14 +20,20 @@
 		return '';
 	}
 
-	$excerpt = get_the_excerpt();
-
-	if ( empty( $excerpt ) ) {
-		return '';
+	/*
+	* The purpose of the excerpt length setting is to limit the length of both
+	* automatically generated and user-created excerpts.
+	* Because the excerpt_length filter only applies to auto generated excerpts,
+	* wp_trim_words is used instead.
+	*/
+	$excerpt_length = $attributes['excerptLength'];
+	$excerpt        = get_the_excerpt( $block->context['postId'] );
+	if ( isset( $excerpt_length ) ) {
+		$excerpt = wp_trim_words( $excerpt, $excerpt_length );
 	}
 
 	$more_text           = ! empty( $attributes['moreText'] ) ? '<a class="wp-block-post-excerpt__more-link" href="' . esc_url( get_the_permalink( $block->context['postId'] ) ) . '">' . wp_kses_post( $attributes['moreText'] ) . '</a>' : '';
-	$filter_excerpt_more = function( $more ) use ( $more_text ) {
+	$filter_excerpt_more = static function ( $more ) use ( $more_text ) {
 		return empty( $more_text ) ? $more : '';
 	};
 	/**
@@ -38,11 +46,14 @@
 	 * result in showing only one `read more` link at a time.
 	 */
 	add_filter( 'excerpt_more', $filter_excerpt_more );
-	$classes = '';
+	$classes = array();
 	if ( isset( $attributes['textAlign'] ) ) {
-		$classes .= "has-text-align-{$attributes['textAlign']}";
+		$classes[] = 'has-text-align-' . $attributes['textAlign'];
 	}
-	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );
+	if ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) {
+		$classes[] = 'has-link-color';
+	}
+	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classes ) ) );
 
 	$content               = '<p class="wp-block-post-excerpt__excerpt">' . $excerpt;
 	$show_more_on_new_line = ! isset( $attributes['showMoreOnNewLine'] ) || $attributes['showMoreOnNewLine'];
@@ -57,6 +68,8 @@
 
 /**
  * Registers the `core/post-excerpt` block on the server.
+ *
+ * @since 5.8.0
  */
 function register_block_core_post_excerpt() {
 	register_block_type_from_metadata(
@@ -67,3 +80,20 @@
 	);
 }
 add_action( 'init', 'register_block_core_post_excerpt' );
+
+/**
+ * If themes or plugins filter the excerpt_length, we need to
+ * override the filter in the editor, otherwise
+ * the excerpt length block setting has no effect.
+ * Returns 100 because 100 is the max length in the setting.
+ */
+if ( is_admin() ||
+	defined( 'REST_REQUEST' ) && REST_REQUEST ) {
+	add_filter(
+		'excerpt_length',
+		static function () {
+			return 100;
+		},
+		PHP_INT_MAX
+	);
+}