v1.6.1

admin/class-robotstxt-manager-settings.php

@@ -44,6 +44,7 @@ class Robotstxt_Manager_Settings {
 		$menu_hook = is_multisite() ? 'network_admin_menu' : 'admin_menu';
 		$loader->add_action( $menu_hook, $this, 'add_settings_page' );
 		$loader->add_action( 'admin_init', $this, 'register_settings' );
+		$loader->add_action( 'admin_init', $this, 'handle_form_submission' );
 		$loader->add_action( 'admin_enqueue_scripts', $this, 'enqueue_scripts' );
 		$loader->add_action( 'wp_ajax_robotstxt_manager_test_connection', $this, 'handle_test_connection' );
 		$loader->add_action( 'wp_ajax_robotstxt_manager_delete_key', $this, 'handle_delete_key' );
@@ -209,8 +210,6 @@ class Robotstxt_Manager_Settings {
 			wp_die( esc_html__( 'You do not have sufficient permissions to access this page.', 'robotstxt-manager' ) );
 		}
 
-		$this->handle_form_submission();
-
 		require_once ROBOTSTXT_MANAGER_DIR . 'admin/views/page-settings.php';
 	}
 
@@ -218,11 +217,12 @@ class Robotstxt_Manager_Settings {
 	 * Handles manual form submission for network settings.
 	 *
 	 * The WordPress Settings API (options.php) does not handle network
-	 * options, so the network settings page must process its own form.
+	 * options, so the settings page must process its own form. Hooked to
+	 * admin_init so the redirect runs before any output is sent.
 	 *
 	 * @return void
 	 */
-	private function handle_form_submission(): void {
+	public function handle_form_submission(): void {
 		if ( ! isset( $_POST['robotstxt_manager_settings_group_nonce'] ) ) {
 			return;
 		}

changelog.txt

@@ -1,5 +1,13 @@
 == Changelog ==
 
+= 1.6.1 =
+
+_Release date: 2026-08-18_
+
+**Fixed**
+
+* "Cannot modify header information — headers already sent" warning after saving the settings: the form handler ran inside the page renderer (after output started). It now runs on `admin_init`, before any output, so the redirect succeeds.
+
 = 1.6.0 =
 
 _Release date: 2026-08-18_

languages/robotstxt-manager.pot

@@ -2,7 +2,7 @@
 # This file is distributed under the GPL-3.0-or-later.
 msgid ""
 msgstr ""
-"Project-Id-Version: Manager (by ROBOTSTXT) 1.6.0\n"
+"Project-Id-Version: Manager (by ROBOTSTXT) 1.6.1\n"
 "Report-Msgid-Bugs-To: https://www.robotstxt.software/plugins/robotstxt-manager/\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"

readme.txt

@@ -3,9 +3,9 @@ Contributors: robotstxt, javiercasares
 Tags: dashboard, catalog, updates, subscriptions, management
 Requires at least: 4.4
 Tested up to: 7.1
-Stable tag: 1.6.0
+Stable tag: 1.6.1
 Requires PHP: 8.0
-Version: 1.6.0
+Version: 1.6.1
 License: GPL-3.0-or-later
 License URI: https://www.gnu.org/licenses/gpl-3.0.txt
 
@@ -94,6 +94,12 @@ Encrypted at rest using AES-256-CBC with a key derived from your site's WordPres
 
 Only the 3 last versions. The full changelog will be at changelog.txt
 
+= 1.6.1 =
+
+_Release date: 2026-08-18_
+
+* Fixed: "headers already sent" warning after saving the settings — the form handler now runs on `admin_init`, before any output.
+
 = 1.6.0 =
 
 _Release date: 2026-08-18_
@@ -111,19 +117,6 @@ _Release date: 2026-08-18_
 
 * Fixed: API key saving, test connection, settings error display, registration link.
 
-= 1.4.1 =
-
-_Release date: 2026-08-17_
-
-* Housekeeping release: plugin identity now points at the ROBOTSTXT software site — Plugin URI and Update URI are `https://www.robotstxt.software/plugins/robotstxt-manager/`, Author URI is `https://www.robotstxt.software/`, and this readme's full-changelog link points to the same page.
-* Tooling aligned with the declared real floors: PHPCS `testVersion` and the preflight scan range now cover PHP 8.0-8.5 (was 7.4/8.4).
-
-= 1.4.0 =
-
-_Release date: 2026-08-17_
-
-* Premium update URLs carry a short-lived download token (Core 1.9.0+) instead of the API key; automatic fallback on older Core.
-
 = Previous versions =
 
 If you want to see the full changelog, visit the [plugin page](https://www.robotstxt.software/plugins/robotstxt-manager/).

robotstxt-manager.php

@@ -3,7 +3,7 @@
  * Plugin Name:       Manager (by ROBOTSTXT)
  * Plugin URI:        https://www.robotstxt.software/plugins/robotstxt-manager/
  * Description:       Client-side dashboard for the ROBOTSTXT plugin ecosystem. Lists the catalog from a remote Plugins Core install, resolves local install/update state, and installs, activates, and updates plugins directly from the store.
- * Version:           1.6.0
+ * Version:           1.6.1
  * Requires at least: 4.4
  * Requires PHP:      8.0
  * Update URI:        https://www.robotstxt.software/plugins/robotstxt-manager/
@@ -23,7 +23,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 }
 
 /** Plugin version. */
-define( 'ROBOTSTXT_MANAGER_VERSION', '1.6.0' );
+define( 'ROBOTSTXT_MANAGER_VERSION', '1.6.1' );
 
 /** Absolute path to the plugin directory, with trailing slash. */
 define( 'ROBOTSTXT_MANAGER_DIR', plugin_dir_path( __FILE__ ) );