Dear GAP Forum,
This is to announce the release of GAP 4.8.3, which could be downloaded from
http://www.gap-system.org/Releases/
An overview of the changes introduced in GAP 4.8.3 is provided below. A more
detailed version with hyperlinks to documentation is available here:
http://www.gap-system.org/Manuals/doc/changes/chap2.htm
New features:
* New function TestPackage to run standard tests (if available) for a single
package in the current GAP session. This function is also callable via
make testpackage PKGNAME=pkgname
to run package tests in the same settings that are used for testing GAP
releases.
Improved and extended functionality:
* TestDirectory now prints a special status message to indicate the outcome of
the test (this is convenient for automated testing). If necessary, this message
may be suppressed by using the option suppressStatusMessage
* Improved output of tracing methods (which may be invoked, for example, with
TraceAllMethods) by displaying filename and line number in some more cases.
Changed functionality:
* Fixed some inconsistencies in the usage of IsGeneratorsOfSemigroup.
Fixed bugs that could lead to incorrect results:
* Fallback methods for conjugacy classes, that were intended only for finite
groups, now use IsFinite filter to prevent them being called for infinite
groups. [Reported by Gabor Horvath]
Fixed bugs that could lead to break loops:
* Calculating stabiliser for the alternating group caused a break loop in
the case when it defers to the corresponding symmetric group.
* It was not possible to use DotFileLatticeSubgroups for a trivial group.
[Reported by Sergio Siccha]
* A break loop while computing AutomorphismGroup for TransitiveGroup(12,269).
[Reported by Ignat Soroko]
* A break loop while computing conjugacy classes of PSL(6,4).
[Reported by Martin Macaj]
Other fixed bugs:
* Fix for using Firefox as a default help viewer with SetHelpViewer.
[Reported by Tom McDonough]
In addition, GAP 4.8.3 distribution includes updates for 29 packages:
====================================================
Package name | Version | Date
----------------------------------------------------
ACE | 5.2 | 11/03/2016
ANUPQ | 3.1.4 | 08/03/2016
AutoDoc | 2016.03.08 | 08/03/2016
CRISP | 1.4.3 | 29/02/2016
cvec | 2.5.5 | 08/03/2016
Digraphs | 0.5 | 03/03/2016
FGA | 1.3.1 | 28/02/2016
fr | 2.3.3 | 27/02/2016
GBNP | 1.0.3 | 08/03/2016
genss | 1.6.4 | 08/03/2016
GUAVA | 3.13 | 31/01/2016
HeLP | 3.0 | 03/03/2016
IO | 4.4.6 | 08/03/2016
matgrp | 0.4 | 25/02/2015
NormalizInterface | 0.9.7 | 10/03/2016
nq | 2.5.3 | 08/03/2016
orb | 4.7.6 | 08/03/2016
Polenta | 1.3.6 | 08/03/2016
profiling | 0.5.1 | 24/02/2016
qaos | 1.2 | 25/02/2016
QPA | 1.24 | 24/02/2016
RCWA | 4.3.1 | 09/03/2016
recog | 1.2.5 | 08/03/2016
recogbase | 1.2.5 | 08/03/2016
ResClasses | 4.4.2 | 09/03/2016
Semigroups | 2.7.4 | 02/03/2016
Utils | 0.39 | 04/03/2016
XGAP | 4.24 | 28/02/2016
XMod | 2.56 | 08/03/2016
====================================================
We encourage all users to upgrade to GAP 4.8.3. If you need any help or
would like to report any problems, please do not hesitate to contact us
at supp...@gap-system.org or submit new issues on GitHub:
https://github.com/gap-system/gap/issues
Wishing you fun and success using GAP,
The GAP Group
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