diff --git a/src/versionnumber.h b/src/versionnumber.h
new file mode 100644
--- /dev/null
+++ b/src/versionnumber.h
@@ -0,0 +1,46 @@
+/*
+  Copyright © 2017 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef VERSIONNUMBER_H
+#define VERSIONNUMBER_H
+
+#include <QString>
+
+struct VersionNumber
+{
+    unsigned major = 0;
+    unsigned minor = 0;
+    unsigned patch = 0;
+
+    VersionNumber(unsigned mj=0, unsigned mn=0, unsigned pt=0);
+
+    /// Convert version number to string.
+    QString toString() const;
+
+    /// Extracts the version number from given string.
+    static bool extract(const QString& str, VersionNumber& number);
+};
+
+bool operator==(const VersionNumber& lhs, const VersionNumber& rhs);
+bool operator<(const VersionNumber& lhs, const VersionNumber& rhs);
+bool operator>(const VersionNumber& lhs, const VersionNumber& rhs);
+
+const VersionNumber CurrentVersion(VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH);
+
+#endif // VERSIONNUMBER_H