diff --git a/admin/mnet/access_control.php b/admin/mnet/access_control.php
index c93dc069d7d..68552aec04b 100644
--- a/admin/mnet/access_control.php
+++ b/admin/mnet/access_control.php
@@ -117,7 +117,6 @@ if ($form = data_submitted() and confirm_sesskey()) {
 }
 
 echo $OUTPUT->header();
-echo $OUTPUT->render(mnet_get_deprecation_notice());
 
 // Explain
 echo $OUTPUT->box(get_string('ssoacldescr','mnet'));
diff --git a/admin/mnet/index.php b/admin/mnet/index.php
index 11a9967c41c..ed4ff7df8a9 100644
--- a/admin/mnet/index.php
+++ b/admin/mnet/index.php
@@ -81,7 +81,6 @@
     $hosts = $DB->get_records_select('mnet_host', "id <> ? AND deleted = 0", array($CFG->mnet_localhost_id), 'wwwroot ASC');
 
     echo $OUTPUT->header();
-    echo $OUTPUT->render(mnet_get_deprecation_notice());
 ?>
 <form method="post" action="index.php">
     <table align="center" width="635" class="generaltable" border="0" cellpadding="5" cellspacing="0">
diff --git a/admin/mnet/peers.php b/admin/mnet/peers.php
index 29919893f60..1cd70b184f9 100644
--- a/admin/mnet/peers.php
+++ b/admin/mnet/peers.php
@@ -51,8 +51,6 @@ if ($hostid && $DB->get_field('mnet_host', 'deleted', array('id' => $hostid)) !=
 $PAGE->set_url('/admin/mnet/peers.php');
 admin_externalpage_setup($adminsection);
 
-$deprecatenotify = mnet_get_deprecation_notice();
-
 if (!extension_loaded('openssl')) {
     throw new \moodle_exception('requiresopenssl', 'mnet');
 }
@@ -88,7 +86,6 @@ if ($formdata = $simpleform->get_data()) {
     $formdata->oldpublickey = $mnet_peer->public_key; // set this so we can confirm on form post without having to recreate the mnet_peer object
     $reviewform->set_data($mnet_peer);
     echo $OUTPUT->header();
-    echo $OUTPUT->render($deprecatenotify);
     echo $OUTPUT->box_start();
     $reviewform->display();
     echo $OUTPUT->box_end();
@@ -176,7 +173,6 @@ if ($formdata = $reviewform->get_data()) {
     }
 } else if ($reviewform->is_submitted()) { // submitted, but errors
     echo $OUTPUT->header();
-    echo $OUTPUT->render($deprecatenotify);
     echo $OUTPUT->box_start();
     $reviewform->display();
     echo $OUTPUT->box_end();
@@ -187,7 +183,6 @@ if ($formdata = $reviewform->get_data()) {
 
 // normal flow - just display all hosts with links
 echo $OUTPUT->header();
-echo $OUTPUT->render($deprecatenotify);
 $hosts = mnet_get_hosts(true);
 
 // print the table to display the register all hosts setting
diff --git a/admin/mnet/tabs.php b/admin/mnet/tabs.php
index bf0c8ff3e3a..0107d758285 100644
--- a/admin/mnet/tabs.php
+++ b/admin/mnet/tabs.php
@@ -44,5 +44,4 @@ if (isset($mnet_peer->id) && $mnet_peer->id > 0) {
 } else {
     $tabs[] = new tabobject('mnetdetails', '#', $strmnetedithost, $strmnetedithost, false);
 }
-echo $OUTPUT->render(mnet_get_deprecation_notice());
 print_tabs(array($tabs), $currenttab);
diff --git a/admin/mnet/trustedhosts.html b/admin/mnet/trustedhosts.html
index 951e8b91852..e48a3d3b542 100644
--- a/admin/mnet/trustedhosts.html
+++ b/admin/mnet/trustedhosts.html
@@ -1,6 +1,5 @@
 <?php
 echo $OUTPUT->header();
-echo $OUTPUT->render(mnet_get_deprecation_notice());
 ?>
 <div id="trustedhosts"><!-- See theme/standard/styles_layout.css #trustedhosts .generaltable for rules -->
 <table cellspacing="0" cellpadding="5"  class="generaltable generalbox" >
diff --git a/admin/settings/mnet.php b/admin/settings/mnet.php
index f853938c50a..9bb5b15dd4a 100644
--- a/admin/settings/mnet.php
+++ b/admin/settings/mnet.php
@@ -49,8 +49,6 @@ $ADMIN->add('mnet', new admin_externalpage('trustedhosts', new lang_string('trus
 if (isset($CFG->mnet_dispatcher_mode) and $CFG->mnet_dispatcher_mode !== 'off') {
     $profilefields = new admin_settingpage('mnetprofilefields', new lang_string('profilefields', 'mnet'),
                                                'moodle/site:config');
-    $profilefields->add(new admin_setting_heading('mnetprofilefields/xmlrpcmnet', '',
-        $OUTPUT->render(mnet_get_deprecation_notice())));
     $ADMIN->add('mnet', $profilefields);
 
     $fields = mnet_profile_field_options();
diff --git a/auth/mnet/settings.php b/auth/mnet/settings.php
index fae2ab9f4c4..b7aa4a4b59a 100644
--- a/auth/mnet/settings.php
+++ b/auth/mnet/settings.php
@@ -27,11 +27,6 @@ defined('MOODLE_INTERNAL') || die;
 if ($ADMIN->fulltree) {
     require_once($CFG->dirroot.'/lib/outputlib.php');
 
-    $notify = new \core\output\notification(get_string('xmlrpcmnetauthenticationenabled', 'admin'),
-        \core\output\notification::NOTIFY_WARNING);
-    $settings->add(new admin_setting_heading('auth_mnet/xmlrpcmnet', '',
-        $OUTPUT->render($notify)));
-
     // Introductory explanation.
     $settings->add(new admin_setting_heading('auth_mnet/pluginname', '',
             new lang_string('auth_mnetdescription', 'auth_mnet')));
diff --git a/lang/en/admin.php b/lang/en/admin.php
index 0dd5135af83..ec2c1aea0f0 100644
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -1544,9 +1544,6 @@ $string['warningiconvbuggy'] = 'Your version of the iconv library does not suppo
 $string['webproxy'] = 'Web proxy';
 $string['webproxyinfo'] = 'Fill in the following options if your Moodle server cannot access the internet directly. Internet access is required for the download of environment data, language packs, RSS feeds, timezones, etc.<br /><em>The PHP cURL extension is highly recommended.</em>';
 $string['xmlrpcrecommended'] = 'The XMLRPC extension is useful for web services and Moodle networking.';
-$string['xmlrpcmaharaenabled'] = 'It has been detected that the Mahara ePortfolio is enabled on your site. This feature relies on the PHP XML-RPC extension which is no longer maintained by PHP.';
-$string['xmlrpcmnetauthenticationenabled'] = 'It has been detected that the MNet authentication is enabled on your site. This feature relies on the PHP XML-RPC extension which is no longer maintained by PHP.';
-$string['xmlrpcmnetenabled'] = 'It has been detected that the Moodle Networking is enabled on your site. This feature relies on the PHP XML-RPC extension which is no longer maintained by PHP.';
 $string['xmlrpcwebserviceenabled'] = 'It has been detected that the XML-RPC Web Service protocol is enabled on your site. This feature relies on the PHP XML-RPC extension which is no longer maintained by PHP.';
 $string['yuicomboloading'] = 'YUI combo loading';
 $string['ziprequired'] = 'The Zip PHP extension is now required by Moodle, info-ZIP binaries or PclZip library are not used anymore.';
diff --git a/lib/adminlib.php b/lib/adminlib.php
index 72c3906431e..052a0d47f2f 100644
--- a/lib/adminlib.php
+++ b/lib/adminlib.php
@@ -7140,11 +7140,6 @@ class admin_setting_manageauths extends admin_setting {
         }
 
         $return = $OUTPUT->heading(get_string('actauthhdr', 'auth'), 3, 'main');
-        if (in_array('mnet', $authsenabled)) {
-            $notify = new \core\output\notification(get_string('xmlrpcmnetauthenticationenabled', 'admin'),
-                \core\output\notification::NOTIFY_WARNING);
-            $return .= $OUTPUT->render($notify);
-        }
         $return .= $OUTPUT->box_start('generalbox authsui');
 
         $table = new html_table();
diff --git a/lib/tests/upgradelib_test.php b/lib/tests/upgradelib_test.php
index 8044cc701fd..6a04c476ceb 100644
--- a/lib/tests/upgradelib_test.php
+++ b/lib/tests/upgradelib_test.php
@@ -1354,64 +1354,6 @@ class upgradelib_test extends advanced_testcase {
         $this->assertFalse($result->getStatus());
     }
 
-    /**
-     * Test the check_xmlrpc_usage check when the MNet is turned on but no host was set up.
-     *
-     * @return void
-     */
-    public function test_check_xmlrpc_mnet_host_is_not_set(): void {
-        global $CFG;
-
-        $this->resetAfterTest();
-        $CFG->mnet_dispatcher_mode = 'strict';
-
-        $result = new environment_results('custom_checks');
-        $this->assertNull(check_xmlrpc_usage($result));
-    }
-
-    /**
-     * Test the check_xmlrpc_usage check when the MNet is turned on and the host was set up.
-     *
-     * @return void
-     */
-    public function test_check_xmlrpc_mnet_host_is_set(): void {
-        global $CFG, $DB;
-
-        $this->resetAfterTest();
-        $CFG->mnet_dispatcher_mode = 'strict';
-
-        // Add a mnet host.
-        $mnethost = new stdClass();
-        $mnethost->name = 'A mnet host';
-        $mnethost->public_key = 'A random public key!';
-        $mnethost->id = $DB->insert_record('mnet_host', $mnethost);
-
-        $result = new environment_results('custom_checks');
-        $this->assertInstanceOf(environment_results::class, check_xmlrpc_usage($result));
-        $this->assertEquals('xmlrpc_mnet_usage', $result->getInfo());
-        $this->assertFalse($result->getStatus());
-    }
-
-    /**
-     * Test the check_xmlrpc_usage check when the MNet is turned on and the Mahara portfolios was set up.
-     *
-     * @return void
-     */
-    public function test_check_xmlrpc_mahara_portfolios_is_set(): void {
-        global $CFG;
-
-        $this->resetAfterTest();
-        $CFG->mnet_dispatcher_mode = 'strict';
-
-        // Enable the Mahara portfolios.
-        \core\plugininfo\portfolio::enable_plugin('mahara', 1);
-
-        $result = new environment_results('custom_checks');
-        $this->assertInstanceOf(environment_results::class, check_xmlrpc_usage($result));
-        $this->assertEquals('xmlrpc_mahara_usage', $result->getInfo());
-        $this->assertFalse($result->getStatus());
-    }
-
     /**
      * Data provider of usermenu items.
      *
diff --git a/lib/upgradelib.php b/lib/upgradelib.php
index 304d712cfb0..55444107dc8 100644
--- a/lib/upgradelib.php
+++ b/lib/upgradelib.php
@@ -2782,31 +2782,5 @@ function check_xmlrpc_usage(environment_results $result): ?environment_results {
         }
     }
 
-    if (isset($CFG->mnet_dispatcher_mode) && $CFG->mnet_dispatcher_mode == 'strict') {
-        // Checking Mnet hosts.
-        $mnethosts = mnet_get_hosts();
-        if ($mnethosts) {
-            $actualhost = 0;
-            foreach ($mnethosts as $mnethost) {
-                if ($mnethost->id != $CFG->mnet_all_hosts_id) {
-                    $actualhost++;
-                }
-            }
-            if ($actualhost > 0) {
-                $result->setInfo('xmlrpc_mnet_usage');
-                $result->setFeedbackStr('xmlrpcmnetenabled');
-                return $result;
-            }
-        }
-
-        // Checking Mahara.
-        $portfolios = \core\plugininfo\portfolio::get_enabled_plugins();
-        if (array_key_exists('mahara', $portfolios)) {
-            $result->setInfo('xmlrpc_mahara_usage');
-            $result->setFeedbackStr('xmlrpcmaharaenabled');
-            return $result;
-        }
-    }
-
     return null;
 }
diff --git a/mnet/environment.php b/mnet/environment.php
index 2f3bbb2ecec..fccedb7b975 100644
--- a/mnet/environment.php
+++ b/mnet/environment.php
@@ -142,10 +142,7 @@ class mnet_environment {
         set_config('openssl', implode('@@@@@@@@', $this->keypair), 'mnet');
 
         $DB->update_record('mnet_host', $this);
-        if (!PHPUNIT_TEST) {
-            // We don't want to output this log for PHPUnit since it will make the test to fail as risky.
-            error_log('New public key has been generated. It expires ' . date('Y/m/d h:i:s', $this->public_key_expires));
-        }
+        error_log('New public key has been generated. It expires ' . date('Y/m/d h:i:s', $this->public_key_expires));
     }
 
     function get_private_key() {
diff --git a/mnet/lib.php b/mnet/lib.php
index fb8a2728476..20a14a59c36 100644
--- a/mnet/lib.php
+++ b/mnet/lib.php
@@ -935,15 +935,3 @@ function mnet_strip_user($user, $fields) {
     }
     return $user;
 }
-
-/**
- * Return the deprecation notice of the Mnet.
- *
- * @return \core\output\notification
- */
-function mnet_get_deprecation_notice(): \core\output\notification {
-    $notice = new \core\output\notification(get_string('xmlrpcmnetenabled', 'admin'),
-        \core\output\notification::NOTIFY_WARNING);
-
-    return $notice;
-}
diff --git a/mnet/service/enrol/index.php b/mnet/service/enrol/index.php
index 1938c6c6e7d..daa30ecc5b5 100644
--- a/mnet/service/enrol/index.php
+++ b/mnet/service/enrol/index.php
@@ -32,7 +32,6 @@ admin_externalpage_setup('mnetenrol');
 $service = mnetservice_enrol::get_instance();
 
 echo $OUTPUT->header();
-echo $OUTPUT->render(mnet_get_deprecation_notice());
 echo $OUTPUT->heading_with_help(get_string('clientname', 'mnetservice_enrol'), 'clientname', 'mnetservice_enrol');
 
 if (!$service->is_available()) {