diff --git a/README.md b/README.md
index 483edd6..7a7ffe3 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ php subtitles.phar input.srt output.vtt
 ```
 subtitles.phar file can be found here - https://github.com/mantas-done/subtitles/releases
 
-## Installation (supports PHP 7.4+)
+## Installation (supports PHP 7.4...PHP 8.4)
 ```
 composer require mantas-done/subtitles
 ```
diff --git a/src/Subtitles.php b/src/Subtitles.php
index ccf8aaf..7cb66a0 100644
--- a/src/Subtitles.php
+++ b/src/Subtitles.php
@@ -181,13 +181,11 @@ public static function getFormat($string)
         }
     }
 
-    // for testing only
     public function getInternalFormat()
     {
         return $this->internal_format;
     }
 
-    // for testing only
     public function setInternalFormat(array $internal_format)
     {
         $this->internal_format = $internal_format;