Appendix I: Changes and New Features in Version 2.00
Free / Open source software license
New web page: http://healpix.jpl.nasa.gov
HTML and PDF documentations are available in [HEALPix]/doc/html/main.htm and [HEALPix]/doc/pdf/
C++ implementation of almost all codes and routines
Fortran90:
2 to 3 times faster Spherical Harmonics tools (ie, synfast, anafast, smoothing, plmgen)
parallelization for distributed memory architectures
More free Fortran90/95 compilers supported:
Intel Fortran Compiler for linux based computers (version 8.1 or 9.0)
http://www.intel.com/software/products/compilers/downloads/forlin.htm
GNU Fortran 95 compiler (gfortran) included in GNU Compiler Collection GCC version 4.0.0
and up and available for Linux, Mac OSX, Windows, Sun ... platforms
http://www.gnu.org/software/gcc/fortran/
Please note that only the most recent CVS versions of gfortran (Aug 2005 and later) compile HEALPix correctly!
g95 compiler available for Linux, Mac OSX, Windows, Sun and HP platforms
http://g95.sf.net
C++ and F90 codes
(almost) identical user interface
parallelization for shared memory architectures
new facilities: median filtering of HEALPix map and alteration/rotation
of Spherical Harmonics coefficients
single and double precision I/O
speed optimization of FITS I/O
more platforms/compilers supported (including Mac OS X, 32/64bit architecture, etc.)
new, longer period, random number generator
linkage to FFTW has been discontinued
precomputed ring weights used for quadrature of the Spherical Harmonics
are now available for all resolution parameters

Java implementation of pixel tools
IDL:
median filtering facility
speed optimization of FITS I/O
more options in file reading and visualisation routines
Eric Hivon
2005-08-31