Oct 2022: Version 1.2.1. Improved instructions for entering superspace transformations.
Jan 2022: Version 1.2. Added nonstandard settings. Also added UNI (unified) symbols to the information about 3-dimensional magnetic space groups and changed the symbols for the magnetic superspace groups, using the UNI (unified) symbols for the magnetic basic space group.
Sep 2021: Version 1.1. Added the symmetry-constrained forms of incommensurate modulation amplitudes.
Mar 2021: Version 1.0. ISOSPACEGROUP first appeared in the ISOTROPY software suite.