Dear GAP Forum,
This is to announce the release of GAP 4.7.4.
You can download GAP 4.7.4 from
http://www.gap-system.org/Releases/
The alternative GAP distributions listed at
http://www.gap-system.org/Download/#alternatives
will be updated in due course.
We haven't announced GAP 4.7.3 last week, since we prepared GAP 4.7.4
immediately after that to revert a change in the GAP parser that
(only on Windows) caused error messages in one of the packages.
The overview of changes in GAP 4.7.4 versus GAP 4.7.2 is given below.
Fixed bugs which could lead to incorrect results:
* Incorrect result returned by AutomorphismGroup(PSp(4,2^n)).
[Reported by Anvita]
* The Order (Reference: Order) method for group homomorphisms
newly introduced in GAP 4.7 had a bug that caused it to sometimes
return incorrect results. [Reported by Benjamin Sambale]
Fixed bugs that could lead to break loops:
* Several bugs were fixed and missing methods were introduced in the
new code for transformations, partial permutations and semigroups
that was first included in GAP 4.7. Some minor corrections were
made in the documentation for transformations.
* Break loop in IsomorphismFpMonoid when prefixes in generators names
were longer than one letter. [Reported by Dmytro Savchuk and Yevgen
Muntyan]
* Break loop while displaying the result of
MagmaWithInversesByMultiplicationTable [Reported by Grahame Erskine]
Improved functionality:
* Better detection of UTF-8 terminal encoding on some systems.
[Suggested by Andries Brouwer]
In addition to the improved functionality and fixed bugs in the
core GAP system, the following packages have been updated since
GAP 4.7.2 release: AutomGrp, AutPGrp, CoReLG, CRISP, Float, FR,
HAP, IRREDSOL, LieRing, MatricesForHomalg, RingsForHomalg and
SimpComp.
We encourage all users to upgrade to GAP 4.7.4. If you need any
help or would like to report any problems, please do not hesitate
to contact us at supp...@gap-system.org.
Please note that we regularly update the GAP distribution to include
new versions of GAP packages, but we may not announce each of them
to the Forum. We intend to use the Forum to announce updates of the
core GAP system and only of some packages which may fix serious
issues or have major influence on GAP.
Wishing you fun and success using GAP,
The GAP Group
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