released version 1.0.1

app/Hooks/Handlers/AdminMenuHandler.php

@@ -103,9 +103,20 @@ public function maybeAdminNotice()
         if (!current_user_can('manage_options')) {
             return;
         }
+
         $connections = $this->app->make(Manager::class)->getConfig('connections');
 
-        if(empty($connections)) {
+        global $wp_version;
+
+        $requireUpdate = version_compare($wp_version,'5.5', '<');
+
+        if($requireUpdate) { ?>
+            <div class="notice notice-warning">
+                <p>
+                    <?php echo sprintf(__('WordPress version 5.5 or greater is required for FluentSMTP. You are using version %s currently. Please update your WordPress Core to use FluentSMTP Plugin.', 'fluent-smtp'), $wp_version); ?>
+                </p>
+            </div>
+        <?php } else if(empty($connections)) {
             ?>
             <div class="notice notice-warning">
                 <p>
@@ -119,5 +130,6 @@ public function maybeAdminNotice()
             </div>
             <?php
         }
+
     }
 }

readme.txt

@@ -1,10 +1,10 @@
 === FluentSMTP - WordPress Mail SMTP, SES, SendGrid, MailGun Plugin ===
 Contributors: techjewel, wpmanageninja, heera, adreastrian
 Tags: smtp, amazon ses, fluent smtp, wordpress smtp, sendgrid smtp, mailgun smtp, mail, mailer, phpmailer, wp_mail, email, sendinblue, wp smtp
-Requires at least: 5.0
+Requires at least: 5.5
 Tested up to: 5.6
 Stable tag: 1.0.1
-Requires PHP: 5.5.0
+Requires PHP: 5.5
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html