6 * Many speedups, many slowdowns.
10 * Figured bass support.
12 * Improved beam formatting.
14 * Improved grace notes.
16 * Improved accidental handling and formatting.
18 * Better spacing. Includes subtle details like optical stem spacing.
20 * More ancient notation support: mensural ligatures, porrectuses,
21 ambituses, more shapes.
23 * Bracket piano pedals.
25 * Some music entry optimizations.
27 * Font completely revised and improved.
29 * Completely rewritten midi input support.
31 * Manual thoroughly revised manual.