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 $N_{\rm side} \le 8192$
* 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