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General:
* WHIZARD 3.0+ currently runs only with the NAGFOR 6.2 (or newer) and
gfortran 6.2.0 (or newer) Fortran compilers as well as Intel ifort
19.0.2 (or newer). gfortran 7.5 and newer is recommended.
[See the file EXTENSIONS for the list of Fortran 2003/2008/2018
features that the compiler must support.]
* WHIZARD 2.7+ incorporates all features from WHIZARD 1, making the
legacy branch obsolete now.
* Please report bugs and problems or performance issues
at our Launchpad site:
https://launchpad.net/whizard
or send an email to our support email address:
<whizard@desy.de>
Known (recent) bugs:
* WHIZARD 3.0.0 and earlier might not compile together with HepMC3/ROOT
when using a genuine C++17 standard compiler like gcc/g++ 11 and newer.
This came from backwards compatibility with gcc/g++ 5 as a default
C++98 compiler. Fixed in v3.0.1.
* WHIZARD 2.8.5/3.0.0beta and earlier do not support reading LCIO events
with LCIO versions 2.15 and newer due to a bug in the LCIO interface.
* WHIZARD 2.8.4 and earlier do not support Pythia 8.301+. If you want to use
these versions of Pythia 8 please use WHIZARD 2.8.5 or 3. Note that
Pythia 8.301-2 and contain a bug in their LHA interface, so you have to use
Pythia 8.303+.
* WHIZARD 2.8.3 exhibits a bug for UFO models containing Majorana fermions:
no matrix element is generated. WHIZARD 2.8.4 solves this problem. There
are still some wrong sign in interference terms for very complicated
processes. They are fixed with version 3.0.0.
* WHIZARD 2.8.1 and earlier does not compile with OCaml versions 4.08.0
and newer due to a deletion of a deprecated feature in the OCaml language.
This is fixed in 2.8.2+ of WHIZARD. For older WHIZARD versions, please
downgrade your OCaml version to anything between versions 4.02.x and 4.07.x.
* MPI version of WHIZARD: version 2.6.3 could produce the MPI-parallelized
version only from the svn repository, and not from the release tarball.
This was corrected for version 2.6.4.
* In version 2.6.0 the top threshold calculations do not work due to a
regression. This is fixed in 2.6.1. In version 2.6.1 all processes
with BSM resonances having PDG codes with 7 digits are broken. This is
fixed in version 2.6.2.
Compilers and OS specialties:
* macOS Darwin >= 20.1:
The libtool support for macOS Big Sur (darwin 20.1+) needed to be updated
in order to treat shared libraries correctly. This affected also the
gcc/gfortran/g++ compiler suite, so on macOS Big Sur, WHIZARD versions older
than 3.0.0 do not work, and WHIZARD will only work with gcc/g++/gfortran
compiler versions 8.5, 9.4, 10.3, and 11.1 or newer (in the corresponding
sub-series).
* MAC OS X Darwin >= 10.11:
The security measures of the new Darwin systems do not allow e.g.
environment variables passed to subprocesses. This does not change
anything for the installed WHIZARD, but the testsuite (make check)
will not work before make install has been executed. make distcheck
will not work on El Capitan. There is also the option to disable
the System Integrity Protocol (SIP) of modern OSX by booting in
Recovery Mode, open a terminal and type 'csrutil disable'. However, we
do not recommend to do so.
Manual:
* For WHIZARD 2.8, the manual is still quite sparse. We are working on
that. Regular updates independent from the subreleases can be found
on the Hepforge webpage:
https://whizard.hepforge.org/manual.pdf
Old bugs in old versions:
* In version 2.3.0 there is a regression which produces invalid O'Mega
matrix element code for SUSY processes with gluino propagators. This
is fixed in 2.3.1+.
* With gfortran 4.9.1, the auto_components feature (incl. the smtest_5
self test) does not work in v2.2.2 due to a regression in that compiler.
This is fixed both in v2.2.3+ of WHIZARD as well as in v4.9.2+ of
gfortran.
* gfortran 4.9.2 contains several bugs/regressions from GNU's ongoing
efforts to implement the Fortran 2008 status. This can lead to
problems in some of WHIZARD's release versions, though most versions
include workarounds. Please try to use at least minor version 3 of
the 4.9.X series.

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