Jetpack outdated WP notices: avoid fatals on outdated WP versions (#3…

…9745)

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/11407772410

Upstream-Ref: Automattic/jetpack@7512e82

CHANGELOG.md

@@ -17,6 +17,7 @@ This is an alpha version! The changes listed here are not final.
 - Connection: Removed features_enabled deprecated method
 
 ### Fixed
+- General: ensure the notice displayed when running an old version of WordPress can always be displayed without errors.
 - My Jetpack: visual update to the GlobalNotice component look better on mobile.
 
 ## [2.9] - 2024-09-06

jetpack-backup.php

@@ -71,13 +71,15 @@ function jetpack_backup_requirements_check() {
 	add_action(
 		'admin_notices',
 		function () use ( $jetpack_backup_meets_requirements ) {
-			wp_admin_notice(
-				esc_html( $jetpack_backup_meets_requirements->get_error_message() ),
-				array(
-					'type'        => 'error',
-					'dismissible' => true,
-				)
-			);
+			?>
+		<div class="notice notice-error is-dismissible">
+			<p>
+				<?php
+				echo esc_html( $jetpack_backup_meets_requirements->get_error_message() );
+				?>
+			</p>
+		</div>
+			<?php
 		}
 	);