[GAP Forum] GAP 4.8.9 release announcement

[Alexander Konovalov]

Dear GAP Forum,

This is to announce the release of GAP 4.8.9, which can be downloaded from

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

The core part of the GAP system in this release is identical to the 
one from the GAP 4.8.8 release; however, this release contains 
updated versions of 56 packages from GAP 4.8.8 distribution:

---------------------------------------------------- 
Package name               | Latest     | Date
---------------------------------------------------- 
4ti2Interface              | 2017.10.04 | 04/10/2017
Alnuth                     | 3.1.0      | 01/12/2017
ANUPQ                      | 3.2        | 29/11/2017
AutoDoc                    | 2017.09.08 | 08/09/2017
CAP                        | 2017.09.25 | 25/09/2017
Circle                     | 1.6.1      | 25/09/2017
Congruence                 | 1.2.1      | 26/09/2017
Digraphs                   | 0.11.0     | 22/11/2017
ExamplesForHomalg          | 2017.09.02 | 02/09/2017
FactInt                    | 1.6.0      | 04/12/2017
FinInG                     | 1.4        | 23/11/2017
Forms                      | 1.2.4      | 26/08/2017
FPLSA                      | 1.2.1      | 04/12/2017
FR                         | 2.4.3      | 03/11/2017
GAPDoc                     | 1.6.1      | 28/11/2017
Gauss                      | 2017.12.07 | 07/12/2017
GaussForHomalg             | 2017.09.10 | 10/09/2017
GeneralizedMorphismsForCAP | 2017.09.09 | 09/09/2017
genss                      | 1.6.5      | 21/11/2017
GradedModules              | 2017.09.10 | 10/09/2017
GradedRingForHomalg        | 2017.09.02 | 02/09/2017
groupoids                  | 1.54       | 29/11/2017
HeLP                       | 3.3        | 11/12/2017
homalg                     | 2017.10.26 | 26/10/2017
HomalgToCAS                | 2017.11.26 | 26/11/2017
idrel                      | 2.38       | 15/12/2017
IntPic                     | 0.2.3      | 14/09/2017
IO                         | 4.5.0      | 20/11/2017
IO_ForHomalg               | 2017.09.02 | 02/09/2017
json                       | 1.2.0      | 10/10/2017
LAGUNA                     | 3.8.0      | 24/09/2017
LinearAlgebraForCAP        | 2017.09.09 | 09/09/2017
LocalizeRingForHomalg      | 2017.09.02 | 02/09/2017
lpres                      | 0.4.2      | 08/12/2017
MatricesForHomalg          | 2017.11.03 | 03/11/2017
ModulePresentationsForCAP  | 2017.09.09 | 09/09/2017
Modules                    | 2017.09.10 | 10/09/2017
Nilmat                     | 1.3        | 12/09/2017
NormalizInterface          | 1.0.2      | 03/12/2017
NumericalSgps              | 1.1.5      | 25/09/2017
orb                        | 4.8.0      | 10/11/2017
PatternClass               | 2.4.1      | 28/09/2017
Polenta                    | 1.3.8      | 29/11/2017
QPA                        | 1.27       | 16/12/2017
RCWA                       | 4.6.0      | 05/12/2017
ResClasses                 | 4.7.0      | 05/12/2017
RingsForHomalg             | 2017.11.03 | 03/11/2017
SCO                        | 2017.09.10 | 10/09/2017
SCSCP                      | 2.2.3      | 24/09/2017
SgpViz                     | 0.999.1    | 13/09/2017
simpcomp                   | 2.1.7      | 29/09/2017
ToolsForHomalg             | 2017.11.05 | 05/11/2017
UnitLib                    | 3.3.0      | 24/09/2017
utils                      | 0.49       | 05/12/2017
Wedderga                   | 4.9.1      | 11/12/2017
XMod                       | 2.64       | 30/11/2017
---------------------------------------------------- 

We encourage all users to upgrade to GAP 4.8.9.

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 


Wishing you fun and success using GAP,

Alexander Konovalov
on behalf of the GAP Group