layer0/Version.h

#ifndef _PyMOL_VERSION
#define _PyMOL_VERSION "2.3.0a0"
#endif

/* for session file compatibility */

#ifndef _PyMOL_VERSION_int
// X.Y.Z   -> XYYYZZZ
#define _PyMOL_VERSION_int 2001000
#define _PyMOL_VERSION_double (_PyMOL_VERSION_int / 1000000.)
#endif