This constant hold the runtime version number as defined in the Preferences as the runtime being used to build the project. The value is stored as a string.
GM_runtime_version;
String
draw_text(32, 32,
date_time_string(GM_build_date));
draw_text(32, 64, "v" + GM_version);
draw_text(32, 96, "Runtime " + GM_runtime_version);
The above code takes the GM date, version and runtime constants and draws them to the screen.