diff --git a/en_US/upgrade/0-upgrade.iredmail.0.9.9-1.0.md b/en_US/upgrade/0-upgrade.iredmail.0.9.9-1.0.md
index 9644c75e..b58ba2b5 100644
--- a/en_US/upgrade/0-upgrade.iredmail.0.9.9-1.0.md
+++ b/en_US/upgrade/0-upgrade.iredmail.0.9.9-1.0.md
@@ -266,8 +266,9 @@ Restarting Postfix service is required.
 
 ### [OPTIONAL] Track the time of user last login via IMAP/POP3
 
-It's useful if you want to know the time of user last login via IMAP/POP3, and
-here's the tutorial to implement this.
+Sometimes you may want/need to know the time of user last login via IMAP/POP3,
+and here's the tutorial to implement this feature. If you run iRedAdmin-Pro
+admin panel, it's visiable on the web UI directly.
 
 * [Track user last login time](./track.user.last.login.html)
 
@@ -360,8 +361,9 @@ Restarting Postfix service is required.
 
 ### [OPTIONAL] Track the time of user last login via IMAP/POP3
 
-It's useful if you want to know the time of user last login via IMAP/POP3, and
-here's the tutorial to implement this.
+Sometimes you may want/need to know the time of user last login via IMAP/POP3,
+and here's the tutorial to implement this feature. If you run iRedAdmin-Pro
+admin panel, it's visiable on the web UI directly.
 
 * [Track user last login time](./track.user.last.login.html)
 
diff --git a/html/upgrade.iredmail.0.9.9-1.0.html b/html/upgrade.iredmail.0.9.9-1.0.html
index 1c41d0fd..08a2926a 100644
--- a/html/upgrade.iredmail.0.9.9-1.0.html
+++ b/html/upgrade.iredmail.0.9.9-1.0.html
@@ -289,8 +289,9 @@ Dovecot-2.1.x or earlier versions.</p>
 
 <p>Restarting Postfix service is required.</p>
 <h3 id="optional-track-the-time-of-user-last-login-via-imappop3">[OPTIONAL] Track the time of user last login via IMAP/POP3</h3>
-<p>It's useful if you want to know the time of user last login via IMAP/POP3, and
-here's the tutorial to implement this.</p>
+<p>Sometimes you may want/need to know the time of user last login via IMAP/POP3,
+and here's the tutorial to implement this feature. If you run iRedAdmin-Pro
+admin panel, it's visiable on the web UI directly.</p>
 <ul>
 <li><a href="./track.user.last.login.html">Track user last login time</a></li>
 </ul>
@@ -365,8 +366,9 @@ Dovecot-2.1.x or earlier versions.</p>
 
 <p>Restarting Postfix service is required.</p>
 <h3 id="optional-track-the-time-of-user-last-login-via-imappop3_1">[OPTIONAL] Track the time of user last login via IMAP/POP3</h3>
-<p>It's useful if you want to know the time of user last login via IMAP/POP3, and
-here's the tutorial to implement this.</p>
+<p>Sometimes you may want/need to know the time of user last login via IMAP/POP3,
+and here's the tutorial to implement this feature. If you run iRedAdmin-Pro
+admin panel, it's visiable on the web UI directly.</p>
 <ul>
 <li><a href="./track.user.last.login.html">Track user last login time</a></li>
 </ul>