Everyone, A new version of gmpy is available. gmpy is a wrapper for the GMP multiple-precision arithmetic library. This version of gmpy also supports the MPIR multiple-precision arithmetic library. gmpy 1.04 is available for download from http://code.google.com/p/gmpy/ There are several new features in this release: - Support for "rich comparisons". - Faster conversion to/from Python longs and other formats. - Fixed conversion of very large numbers to a string (only limited by memory). - Support for pickling. - Support for divexact. - Support for bit_length. - Special helper functions to improve the performance of mpmath, an arbitrary-precision floating point library written in Python, (http:// code.google.com/p/mpmath/). - Support for MPIR, an alternative multiple-precision library based on GMP, (http://mpir.org). - Added fround() to round an mpf value. WARNING! A (possibly) significant change was made to the handling of mpf values. GMP would frequently return more bits in a result than requested. This led to bugs such such as mpf(1.1)*mpf(1) != mpf(1.1) but mpf(1.1) / mpf(1) == mpf(1.1). The results of all floating point calculations are now rounded to the requested precision. mpf calculations may now produce slightly different results but the results are still within the bounds of the requested accuracy. As an alternative, the mpmath library provides consistently rounded floating point arithmetic and support a wide variety of transcendental functions. Comments on provided binaries The 32-bit Windows installers were compiled using MPIR 0.9 RC2 and will automatically recognize the CPU type and use code optimized for that CPU. gmpy 1.04 libraries are also provided for 64-bit Windows and Python 2.6. There is no installer; the appropriate gmpy.pyd must be copied to the site-packages directory. casevh