diff --git a/Common.h b/Common.h
index a557131..a762fe7 100644
--- a/Common.h
+++ b/Common.h
@@ -27,8 +27,6 @@
 #include "Shape.h"
 #include "Mapper.h"
 
-#define LIBREMAPPING_VERSION "0.1"
-
 /**
  * The main MapMap engine that deals with video mapping projects.
  */
diff --git a/HACKING b/HACKING
index be45c93..1b50596 100644
--- a/HACKING
+++ b/HACKING
@@ -3,7 +3,6 @@ Contribute to MapMap
 
 Coding style
 ------------
-
 * indent with 2 spaces
 * opening curly braces on a new line
 * function and method names camelCase, with lowercase first letter
@@ -12,3 +11,22 @@ Coding style
 * file names all lowercase
 * always add spaces between operators such as +, -, /, * casts, etc. (except pointers and references)
 
+Version numbers
+---------------
+We use Semantic Versioning 2.0.0. Given a version number MAJOR.MINOR.PATCH, increment the:
+* MAJOR version when you make incompatible API changes,
+* MINOR version when you add functionality in a backwards-compatible manner, and
+* PATCH version when you make backwards-compatible bug fixes.
+See http://semver.org/
+
+Files
+-----
+* BUGS: List of bugs to fix. (or, again, use github for these)
+* HACKING: What to know to contribute to the project.
+* INSTALL: Instructions to build and install the software.
+* NEWS: Release notes for each tag.
+* README: The short documentation at the root of the project
+* TODO: You can put things to do there, or use https://github.com/mapmapteam/mapmap, or https://www.pivotaltracker.com/s/projects/954570/
+* images/: Images part of the GUI.
+* prototypes/ : Contains prototypes. Please ask the project maintainer before removing some of these.
+
diff --git a/MainWindow.cpp b/MainWindow.cpp
index 9125124..52160a8 100644
--- a/MainWindow.cpp
+++ b/MainWindow.cpp
@@ -345,11 +345,10 @@ void MainWindow::about()
   // Pop-up about dialog.
   QMessageBox::about(this, tr("About MapMap"),
       tr("<h2>MapMap "
-          LIBREMAPPING_VERSION
+          MAPMAP_VERSION
           "</h2>"
-          "<p>Copyright &copy; 2013 Sofian Audry"
-          "<p>Copyright &copy; 2013 Alexandre Quessy"
-          "<p>Copyright &copy; 2013 Vasilis Liaskovitis"
+          "<p>Copyright &copy; 2013 Sofian Audry, Alexandre Quessy, Julien Keable, "
+          "Mike Latona and Vasilis Liaskovitis."
           "<p>MapMap is a free software for video mapping. "
           "<p>Projection mapping, also known as video mapping and spatial augmented reality, "
           "is a projection technology used to turn objects, often irregularly shaped, into "
diff --git a/MainWindow.h b/MainWindow.h
index 6333c7d..a0370bc 100644
--- a/MainWindow.h
+++ b/MainWindow.h
@@ -40,7 +40,7 @@
 #include "qttreepropertybrowser.h"
 #include "qtgroupboxpropertybrowser.h"
 
-#define LIBREMAPPING_VERSION "0.1"
+#define MAPMAP_VERSION "0.0.9"
 
 /**
  * This is the main window of MapMap. It acts as both a view and a controller interface.