diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index b923a58..dd9ae76 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -63,7 +63,12 @@
 SVN Revision: XXXX</p>
 
 <ul>
-	<li>No changes currently</li>
+	<li>No significant changes yet</li>
+	<li>Other changes
+		<ul>
+			<li>Documented the language file use of <kbd>byte_format()</kbd> in the <a href="helpers/number_helper.html">number helper</a>.</li>
+		</ul>
+	</li>
 </ul>
 
 <h3>Bug fixes for 1.6.4</h3>
diff --git a/user_guide/helpers/number_helper.html b/user_guide/helpers/number_helper.html
index c3a8296..929c968 100644
--- a/user_guide/helpers/number_helper.html
+++ b/user_guide/helpers/number_helper.html
@@ -83,6 +83,11 @@
 echo byte_format(123456789123456789); // Returns 11,228.3 TB
 </code>
 
+<p class="important">
+<strong>Note:</strong>
+The text generated by this function is found in the following language file: language/<your_lang>/number_lang.php
+</p>
+
 </div>
 <!-- END CONTENT -->