diff --git a/README.md b/README.md
index 3612208..8cb21d3 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,10 @@
 
 os9_conv is a small tool used to convert APPLE ][ OS9 Stellation Two "The Mill" DSK image disks (created using ADT tool) to standard RBF OS9 DSK image disks, such as, for example,  those used by the TRS-80 Color Computer, and back.
 
+os9_conv has been written in C programming language with Eclipse IDE for C/C++ Developers and mingw32 gcc compiler V5.3.0-03 .
+
+Version: Neon.2 Release (4.6.2)
+
 The aim of this utility is to create an OS9 RBF floppy disk image compatible with the "toolshed" TRS-80 Color Computer utility.
 The toolshed utility allows direct manipulation of OS9 RBF disk image content from MS-DOS, allowing to directly read,write OS9 files etc. , distributed at https://sourceforge.net/projects/toolshed/
 
diff --git a/os9_conv/Release/README.TXT b/os9_conv/Release/README.TXT
index a0f974a..6b12046 100644
--- a/os9_conv/Release/README.TXT
+++ b/os9_conv/Release/README.TXT
@@ -2,6 +2,10 @@
 
 os9_conv is a small tool used to convert APPLE ][ OS9 Stellation Two "The Mill" DSK image disks (created using ADT tool) to standard RBF OS9 DSK image disks, such as, for example,  those used by the TRS-80 Color Computer, and back.
 
+os9_conv has been written in C programming language with Eclipse IDE for C/C++ Developers and mingw32 gcc compiler V5.3.0-03 .
+
+Version: Neon.2 Release (4.6.2)
+
 The aim of this utility is to create an OS9 RBF floppy disk image compatible with the "toolshed" TRS-80 Color Computer utility.
 The toolshed utility allows direct manipulation of OS9 RBF disk image content from MS-DOS, allowing to directly read,write OS9 files etc. , distributed at https://sourceforge.net/projects/toolshed/