This file records noteworthy changes. 0.4.0 (26 November 1999) * First public release. 0.4.1 (13 December 1999) * Series Expansion of Gamma function and some other trigonometric functions at their poles works now. * Many more evaluations of special functions at points where exact results exist. * info_flags::rational doesn't return true for complex extensions any more---use info_flags::crational for the old behaviour. info_flags::integer and -::cinteger work similarly, the same holds for types like info_flags::rational_polynomial. 0.5.0 () * Expressions can be written ("archived") to files and read therefrom.