diff --git a/Makefile b/Makefile
index 91c6b72..bc602a3 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 # **************************************************************
 # *         C++ Mathematical Expression Toolkit Library        *
 # *                                                            *
-# * Author: Arash Partow (1999-2017)                           *
+# * Author: Arash Partow (1999-2018)                           *
 # * URL: http://www.partow.net/programming/exprtk/index.html   *
 # *                                                            *
 # * Copyright notice:                                          *
diff --git a/exprtk.hpp b/exprtk.hpp
index 67752a2..2e62bf5 100644
--- a/exprtk.hpp
+++ b/exprtk.hpp
@@ -2,7 +2,7 @@
  ******************************************************************
  *           C++ Mathematical Expression Toolkit Library          *
  *                                                                *
- * Author: Arash Partow (1999-2017)                               *
+ * Author: Arash Partow (1999-2018)                               *
  * URL: http://www.partow.net/programming/exprtk/index.html       *
  *                                                                *
  * Copyright notice:                                              *
@@ -38252,9 +38252,9 @@
    namespace information
    {
       static const char* library = "Mathematical Expression Toolkit";
-      static const char* version = "2.7182818284590452353602874713526624977572470936"
-                                   "999595749669676277240766303535475945713821785251";
-      static const char* date    = "20170505";
+      static const char* version = "2.71828182845904523536028747135266249775724709369"
+                                   "9959574966967627724076630353547594571382178525166";
+      static const char* date    = "20180101";
 
       static inline std::string data()
       {
diff --git a/exprtk_benchmark.cpp b/exprtk_benchmark.cpp
index 6cb8167..e219765 100644
--- a/exprtk_benchmark.cpp
+++ b/exprtk_benchmark.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * ExprTk vs Native Benchmarks                                *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_01.cpp b/exprtk_simple_example_01.cpp
index 4c0037b..04656bd 100644
--- a/exprtk_simple_example_01.cpp
+++ b/exprtk_simple_example_01.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 1                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_02.cpp b/exprtk_simple_example_02.cpp
index 71b2069..0dedde1 100644
--- a/exprtk_simple_example_02.cpp
+++ b/exprtk_simple_example_02.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 2                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_03.cpp b/exprtk_simple_example_03.cpp
index 924e404..b1abe63 100644
--- a/exprtk_simple_example_03.cpp
+++ b/exprtk_simple_example_03.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 3                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_04.cpp b/exprtk_simple_example_04.cpp
index 801feae..f394d7e 100644
--- a/exprtk_simple_example_04.cpp
+++ b/exprtk_simple_example_04.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 4                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_05.cpp b/exprtk_simple_example_05.cpp
index a4dbe0c..f563a4c 100644
--- a/exprtk_simple_example_05.cpp
+++ b/exprtk_simple_example_05.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 5                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_06.cpp b/exprtk_simple_example_06.cpp
index 9a5c431..15ae070 100644
--- a/exprtk_simple_example_06.cpp
+++ b/exprtk_simple_example_06.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 6                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_07.cpp b/exprtk_simple_example_07.cpp
index 9f50b6d..ecaa08a 100644
--- a/exprtk_simple_example_07.cpp
+++ b/exprtk_simple_example_07.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 7                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_08.cpp b/exprtk_simple_example_08.cpp
index a785d82..cd21bb9 100644
--- a/exprtk_simple_example_08.cpp
+++ b/exprtk_simple_example_08.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 8                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_09.cpp b/exprtk_simple_example_09.cpp
index 5f68703..4b61efe 100644
--- a/exprtk_simple_example_09.cpp
+++ b/exprtk_simple_example_09.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 9                                           *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_10.cpp b/exprtk_simple_example_10.cpp
index 9a2e4c1..1d75dc1 100644
--- a/exprtk_simple_example_10.cpp
+++ b/exprtk_simple_example_10.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 10                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_11.cpp b/exprtk_simple_example_11.cpp
index c6c4daf..e280611 100644
--- a/exprtk_simple_example_11.cpp
+++ b/exprtk_simple_example_11.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 11                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_12.cpp b/exprtk_simple_example_12.cpp
index 5acea5f..dd63592 100644
--- a/exprtk_simple_example_12.cpp
+++ b/exprtk_simple_example_12.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 12                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_13.cpp b/exprtk_simple_example_13.cpp
index ec9d3b1..df68035 100644
--- a/exprtk_simple_example_13.cpp
+++ b/exprtk_simple_example_13.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 13                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_14.cpp b/exprtk_simple_example_14.cpp
index ec7e66a..7f7f8d3 100644
--- a/exprtk_simple_example_14.cpp
+++ b/exprtk_simple_example_14.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 14                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_15.cpp b/exprtk_simple_example_15.cpp
index e3a1ec2..b70c2c0 100644
--- a/exprtk_simple_example_15.cpp
+++ b/exprtk_simple_example_15.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 15                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_16.cpp b/exprtk_simple_example_16.cpp
index ffad092..1483c50 100644
--- a/exprtk_simple_example_16.cpp
+++ b/exprtk_simple_example_16.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 16                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_17.cpp b/exprtk_simple_example_17.cpp
index 300aaed..a80e0ca 100644
--- a/exprtk_simple_example_17.cpp
+++ b/exprtk_simple_example_17.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 17                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_18.cpp b/exprtk_simple_example_18.cpp
index 54e1775..c5bdf04 100644
--- a/exprtk_simple_example_18.cpp
+++ b/exprtk_simple_example_18.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 18                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_simple_example_19.cpp b/exprtk_simple_example_19.cpp
index e088ecc..d317559 100644
--- a/exprtk_simple_example_19.cpp
+++ b/exprtk_simple_example_19.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Simple Example 19                                          *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *
diff --git a/exprtk_test.cpp b/exprtk_test.cpp
index 9867f33..aaf3901 100644
--- a/exprtk_test.cpp
+++ b/exprtk_test.cpp
@@ -3,7 +3,7 @@
  *         C++ Mathematical Expression Toolkit Library        *
  *                                                            *
  * Examples and Unit-Tests                                    *
- * Author: Arash Partow (1999-2017)                           *
+ * Author: Arash Partow (1999-2018)                           *
  * URL: http://www.partow.net/programming/exprtk/index.html   *
  *                                                            *
  * Copyright notice:                                          *