1.0 (26/03/2015)
 Création of the program.

1.1 (24/04/2015)
 The window can no longer be resized.

2.0 (12/12/2017)
 Renaming of the program into "GpaWa Eye Rest Helper" (was "GCountdown Timer");
 The program is now in english by default, with a french translation;
 You can now change the duration of the timers, among other interface additions.

2.1 (10/05/2017)
 On Windows systems, added buttons to start the timers and stop them in the window thumbnail;
 The remaining time is now displayed in the title bar.

2.2 (24/09/2018)
 You can now press Escape to stop the current timer;
 Fixed the ugly interface and lacking of sound on Windows.

2.3 (03/11/2019)
 Now displays leading zeroes.

2.4 (24/08/2024)
 The volume is now adjustable.