diff -r 34716fd837a4 -r be944660c56a wp/wp-includes/blocks/query-pagination-next.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/blocks/query-pagination-next.php	Wed Sep 21 18:19:35 2022 +0200
@@ -0,0 +1,67 @@
+<?php
+/**
+ * Server-side rendering of the `core/query-pagination-next` block.
+ *
+ * @package WordPress
+ */
+
+/**
+ * Renders the `core/query-pagination-next` block on the server.
+ *
+ * @param array    $attributes Block attributes.
+ * @param string   $content    Block default content.
+ * @param WP_Block $block      Block instance.
+ *
+ * @return string Returns the next posts link for the query pagination.
+ */
+function render_block_core_query_pagination_next( $attributes, $content, $block ) {
+	$page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';
+	$page     = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];
+	$max_page = isset( $block->context['query']['pages'] ) ? (int) $block->context['query']['pages'] : 0;
+
+	$wrapper_attributes = get_block_wrapper_attributes();
+	$default_label      = __( 'Next Page &raquo;' );
+	$label              = isset( $attributes['label'] ) && ! empty( $attributes['label'] ) ? $attributes['label'] : $default_label;
+	$content            = '';
+
+	// Check if the pagination is for Query that inherits the global context.
+	if ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] ) {
+		$filter_link_attributes = function() use ( $wrapper_attributes ) {
+			return $wrapper_attributes;
+		};
+		add_filter( 'next_posts_link_attributes', $filter_link_attributes );
+		// Take into account if we have set a bigger `max page`
+		// than what the query has.
+		global $wp_query;
+		if ( $max_page > $wp_query->max_num_pages ) {
+			$max_page = $wp_query->max_num_pages;
+		}
+		$content = get_next_posts_link( $label, $max_page );
+		remove_filter( 'next_posts_link_attributes', $filter_link_attributes );
+	} elseif ( ! $max_page || $max_page > $page ) {
+		$custom_query = new WP_Query( build_query_vars_from_query_block( $block, $page ) );
+		if ( (int) $custom_query->max_num_pages !== $page ) {
+			$content = sprintf(
+				'<a href="%1$s" %2$s>%3$s</a>',
+				esc_url( add_query_arg( $page_key, $page + 1 ) ),
+				$wrapper_attributes,
+				$label
+			);
+		}
+		wp_reset_postdata(); // Restore original Post Data.
+	}
+	return $content;
+}
+
+/**
+ * Registers the `core/query-pagination-next` block on the server.
+ */
+function register_block_core_query_pagination_next() {
+	register_block_type_from_metadata(
+		__DIR__ . '/query-pagination-next',
+		array(
+			'render_callback' => 'render_block_core_query_pagination_next',
+		)
+	);
+}
+add_action( 'init', 'register_block_core_query_pagination_next' );