diff --git a/keywords.txt b/keywords.txt
index 73e3faa3..077caaca 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -62,6 +62,10 @@ isSubMenu	KEYWORD2
 getItemAt	KEYWORD2
 toggleBacklight	KEYWORD2
 getType	KEYWORD2
+substring	KEYWORD2
+concat	KEYWORD2
+concat	KEYWORD2
+remove	KEYWORD2
 
 #######################################
 # Constants (LITERAL1)
diff --git a/library.json b/library.json
index 1a196fda..fd93b707 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "LcdMenu",
-  "version": "3.0.1",
+  "version": "3.1.0",
   "keywords": "menu, display, lcdmenu, navigation",
   "description": "LcdMenu is an Arduino library that enables you to create interactive menus and navigation systems for LCD displays. With LcdMenu, you can easily add menus to your projects and navigate through them using buttons or any input device you want. The library supports a wide range of LCD display modules, including character and alphanumeric displays.",
   "repository": {
diff --git a/library.properties b/library.properties
index 47af61bf..ffd62dbb 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=LcdMenu
-version=3.0.1
+version=3.1.0
 author=Forntoh Thomas <thomasforntoh@gmail.com>
 maintainer=Forntoh Thomas <thomasforntoh@gmail.com>
 sentence=Display navigable menu items on your LCD display with Arduino.