diff --git a/LICENSE b/LICENSE
index c22fc23..820cb05 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2023 mobizt
+Copyright (c) 2024 mobizt
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index 69333d0..30ad1bb 100644
--- a/README.md
+++ b/README.md
@@ -1908,7 +1908,7 @@ The result of the above code
 
 The MIT License (MIT)
 
-Copyright (c) 2023 K. Suwatchai (Mobizt)
+Copyright (c) 2024 K. Suwatchai (Mobizt)
 
 
 Permission is hereby granted, free of charge, to any person returning a copy of
diff --git a/library.json b/library.json
index 3f3cd64..1e8c76d 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "Firebase ESP8266 Client",
-  "version": "4.4.10",
+  "version": "4.4.11",
   "keywords": "communication, REST, esp8266, arduino",
   "description": "The secure, fast and reliable Firebase Realtime database library to read, store, update, delete, listen, backup, and restore data. You can also read and modify the database security rules with this library.",
   "repository": {
diff --git a/library.properties b/library.properties
index b9040bc..13e2410 100644
--- a/library.properties
+++ b/library.properties
@@ -1,6 +1,6 @@
 name=Firebase ESP8266 Client
 
-version=4.4.10
+version=4.4.11
 
 author=Mobizt
 
diff --git a/src/README.md b/src/README.md
index 4785401..eb58957 100644
--- a/src/README.md
+++ b/src/README.md
@@ -4967,7 +4967,7 @@ e.g. to<String>(), to<int>(), to<bool>()
 
 The MIT License (MIT)
 
-Copyright (c) 2023 K. Suwatchai (Mobizt)
+Copyright (c) 2024 K. Suwatchai (Mobizt)
 
 
 Permission is hereby granted, free of charge, to any person returning a copy of
diff --git a/src/core/Firebase_Client_Version.h b/src/core/Firebase_Client_Version.h
index 1d94396..49f579f 100644
--- a/src/core/Firebase_Client_Version.h
+++ b/src/core/Firebase_Client_Version.h
@@ -1,6 +1,6 @@
 #ifndef FIREBASE_CLIENT_VERSION
-#define FIREBASE_CLIENT_VERSION "4.4.10"
-#define FIREBASE_CLIENT_VERSION_NUM 40410
+#define FIREBASE_CLIENT_VERSION "4.4.11"
+#define FIREBASE_CLIENT_VERSION_NUM 40411
 
 #define FIREBASE_CLIENT_VERSION_CHECK(ver) (true)
 #endif
\ No newline at end of file
diff --git a/src/rtdb/FB_RTDB.cpp b/src/rtdb/FB_RTDB.cpp
index a387387..72c55a4 100644
--- a/src/rtdb/FB_RTDB.cpp
+++ b/src/rtdb/FB_RTDB.cpp
@@ -1,8 +1,8 @@
 
 /**
- * Google's Firebase Realtime Database class, FB_RTDB.cpp version 2.1.1
+ * Google's Firebase Realtime Database class, FB_RTDB.cpp version 2.1.2
  *
- * Created September 13, 2023
+ * Created February 17, 2024
  *
  * The MIT License (MIT)
  * Copyright (c) 2023 K. Suwatchai (Mobizt)
@@ -1352,14 +1352,14 @@ uint8_t FB_RTDB::readQueueFileSdFat(FirebaseData *fbdo, MBFS_SD_FILE &file, Queu
 
     while (file.available())
     {
-        Core.ut.FBUtils::idle();
+        FBUtils::idle();
         if (arr.readFrom(file))
         {
             if (mode == 1)
             {
                 for (size_t i = 0; i < arr.size(); i++)
                 {
-                    Core.ut.FBUtils::idle();
+                    FBUtils::idle();
                     arr.get(result, i);
                     if (result.success)
                     {
diff --git a/src/rtdb/FB_RTDB.h b/src/rtdb/FB_RTDB.h
index 2338f57..2a71317 100644
--- a/src/rtdb/FB_RTDB.h
+++ b/src/rtdb/FB_RTDB.h
@@ -1,8 +1,8 @@
 
 /**
- * Google's Firebase Realtime Database class, FB_RTDB.h version 2.1.1
+ * Google's Firebase Realtime Database class, FB_RTDB.cpp version 2.1.2
  *
- * Created September 13, 2023
+ * Created February 17, 2024
  *
  * The MIT License (MIT)
  * Copyright (c) 2023 K. Suwatchai (Mobizt)