KOMA-Script is not only a drop-in replacement for the article/report/book classes with emphasis on typography and versatility. There is e.g. also a package for calculated type areas like laid down by the typographer Jan Tschichold, a package for easy changing and defining of page styles, a package for getting not only the current date but also the name of day and a package for getting current time. There is also a new letter class which is different from all other letter classes. All these packages may be used not only with KOMA-Script classes but also with standard classes. Since every package has it's own version number, number below is only the version of scrbook, scrreprt, scrartcl, scrlttr2 and typearea. These are the main parts of the bundle. The author is Markus Kohm.