[GAP Forum] GAP 4.8.8 release announcement

Alexander Konovalov alexander.konovalov at st-andrews.ac.uk
Wed Aug 30 15:13:25 BST 2017


Dear GAP Forum,

This is to announce the release of GAP 4.8.8, which can be downloaded from

	http://www.gap-system.org/Releases/

The changes in the core GAP system introduced in GAP 4.8.8 are:

* Fixed bug in RepresentativeAction producing incorrect answers for both 
symmetric and alternating groups, with both OnTuples and OnSets, by 
producing elements outside the group. [Reported by Mun See Chang]

* Fixed bug in RepresentativeAction for S_n and A_n acting 
on non-standard domains.

* Fixed a problem with checking the path to a file when using the default
browser as a help viewer on Windows. [Reported by Jack Saunders]

For the corresponding changes in the GAP source code, see the GAP 4.8.8 
milestone on GitHub: 

	https://github.com/gap-system/gap/milestone/15?closed=1

Additionally, GAP 4.8.8 distribution contains updated versions 
of 29 GAP packages:

4ti2Interface              | 2017.01.05 | 05/01/2017 
ANUPQ                      | 3.1.5      | 20/07/2017 
Browse                     | 1.8.7      | 21/07/2017 
CAP                        | 2017.07.25 | 25/07/2017 
cvec                       | 2.5.7      | 01/08/2017 
Digraphs                   | 0.10.1     | 16/08/2017 
ExamplesForHomalg          | 2017.05.25 | 25/05/2017 
float                      | 0.7.6      | 09/05/2017 
GAPDoc                     | 1.6        | 20/07/2017 
Gauss                      | 2017.06.14 | 14/06/2017 
GeneralizedMorphismsForCAP | 2017.07.25 | 25/07/2017 
GradedModules              | 2017.05.10 | 10/05/2017 
GradedRingForHomalg        | 2017.05.26 | 26/05/2017 
homalg                     | 2017.05.10 | 10/05/2017 
HomalgToCAS                | 2017.08.01 | 01/08/2017 
IO_ForHomalg               | 2017.07.01 | 01/07/2017 
IRREDSOL                   | 1.4        | 03/08/2017 
LinearAlgebraForCAP        | 2017.07.25 | 25/07/2017 
LocalizeRingForHomalg      | 2017.07.17 | 17/07/2017 
MatricesForHomalg          | 2017.08.02 | 02/08/2017 
ModulePresentationsForCAP  | 2017.07.25 | 25/07/2017 
Modules                    | 2017.07.17 | 17/07/2017 
PatternClass               | 2.3        | 05/07/2017 
qaos                       | 1.5        | 30/07/2017 
QPA                        | 1.26       | 02/06/2017 
RingsForHomalg             | 2017.08.02 | 02/08/2017 
Smallsemi                  | 0.6.11     | 26/04/2017 
ToolsForHomalg             | 2017.05.10 | 10/05/2017 
XMod                       | 2.62       | 09/08/2017 

Furthermore, the Gpd package by Chris Wensley has been renamed to 
Groupoids.

We encourage all users to upgrade to GAP 4.8.8.

Just in case, a common pitfall during GAP installation on Linux and macOS 
is to compile only the GAP kernel, but not the packages. This procedure 
had changed less than a year ago (in GAP 4.8.4), so let me remind you that
after running 

./configure
make

in the GAP root directory you need to change to the 'pkg' subdirectory 
and call

../bin/BuildPackages.sh

to run the script which will build most of the packages that require 
compilation (provided sufficiently many libraries, headers and tools 
are available).

If you need any help or would like to report any problems, please do 
not hesitate to contact us at support at gap-system.org, or submit new 
issues on GitHub: 

	https://github.com/gap-system/gap/issues

There is also a 'gap' tag for questions about GAP at the 
Mathematics Q&A site:

  http://math.stackexchange.com/tags/gap/info

In addition, you may find some GAP related news on Twitter:

  http://twitter.com/gap_system 

(you may also read the GAP Twitter feed at http://www.gap-system.org).


Wishing you fun and success using GAP,

Alexander Konovalov
on behalf of the GAP Group



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