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GAP 4.8.8

For an overview of changes in GAP 4.8.8 see file.

Linux and macOS

Download one of the archives below, unpack it and run ./configure; make in the unpacked directory. Then change to the pkg subdirectory and call ../bin/ to run the script which will build most of the packages that require compilation (provided sufficiently many libraries, headers and tools are available). For further details, see here. Expert users can find the description of all installation options in the file.

gap4r8p8_2017_08_20-15_12.tar.gz 319 MB sha256: 5437b8127464065b9b5dc178ff22a716e92422bc7527d30ad462260df5011a7b
gap4r8p8_2017_08_20-15_12.tar.bz2 265 MB sha256: 16d2a809f69276ba8ff72f22d512dc7f38e182c81b15986ae78431c420bd2308 342 MB sha256: 880ea4d7d9bdcf47b660d248956f6ca195015c31c6931b239a2ff943a803aea5

You may also consider one of the alternative distributions. Note, however, that these are updated independently and may not yet provide the latest GAP release.


We strongly recommend to use the .exe installer which contains binaries for GAP (compiled with the support of GMP and readline libraries) and for selected GAP packages, and provides the standard installation procedure. Note that the path to the GAP directory should not contain spaces. For example, you may install it in C:\gap4r8 (default), D:\gap4r8p3 or C:\Math\GAP\gap4r8, but you must not install it in a directory named like C:\Program files\gap4r8 or C:\Users\alice\My Documents\gap4r8 etc.

gap4r8p8_2017_08_20-15_12.exe 454 MB sha256: 3f3536809ba919e11e31f97e4b0a278bda4be8664a57f46efc7cc9953ec3fac1

The .exe installer should work for the majority of users. Alternatively (for example, if you don't have administrator's privileges on your Windows computer), you may use the archive and edit .bat files manually following instructions from the file. Furthermore, in case of technical problems with readline support under Windows (e.g. command line editing doesn't work, or GAP crashes at startup), we recommend to try the archive. 476 MB sha256: dffb1f8e0ff9ba28a55f8006091a88a1c64ec7fddc3bb8ea6ac0621bc38e4aa9 476 MB sha256: 8d1315bdc4b95d4e56bee40aaad0a1c494745182ebb419ec6f8100a73a2bdb85

In addition, there is an experimental 64-bit version of GAP for Windows here: 472 MB sha256: 588bac763e54685dc3174daed501c16711f9ed07bf55e6d0919604a46fc55b9d

Packages included in this release

Each of the GAP 4.8.8 archives contains the core GAP system (the source code, data libraries, regression tests and documentation), and the following selection of packages:

4ti2Interface   2017.01.05     05/01/2017    A link to 4ti2
ACE   5.2     11/03/2016    Advanced Coset Enumerator
AClib   1.2     29/05/2012    Almost Crystallographic Groups - A Library and Algorithms
Alnuth   3.0.0     26/10/2011    Algebraic number theory and an interface to PARI/GP
ANUPQ   3.1.5     20/07/2017    ANU p-Quotient
AtlasRep   1.5.1     30/03/2016    A GAP Interface to the Atlas of Group Representations
AutoDoc   2016.12.04     04/12/2016    Generate documentation from GAP source code
Automata   1.13     19/11/2011    A package on automata
AutomGrp   1.3     28/03/2016    Automata groups
AutPGrp   1.8     25/11/2016    Computing the Automorphism Group of a p-Group
Browse   1.8.7     21/07/2017    browsing applications and ncurses interface
CAP   2017.07.25     25/07/2017    Categories, Algorithms, Programming
Carat   2.1.6     23/05/2016    Interface to CARAT, a crystallographic groups package
Circle   1.5.4     08/01/2016    Adjoint groups of finite rings
cohomolo   1.6.4     20/01/2016    Cohomology groups of finite groups on finite modules
Congruence   1.1.1     28/10/2014    Congruence subgroups of SL(2,Integers)
Convex   2013.12.05     05/12/2013    A package for fan combinatorics
CoReLG   1.20     02/12/2014    computation with real Lie groups
Crime   1.4     01/6/2011    A GAP Package to Calculate Group Cohomology and Massey Products
CRISP   1.4.4     20/03/2016    Computing with Radicals, Injectors, Schunck classes and Projectors
Cryst   4.1.12     10/10/2013    Computing with crystallographic groups
CrystCat   1.1.6     29/05/2012    The crystallographic groups catalog
CTblLib   1.2.2     07/03/2013    The GAP Character Table Library
Cubefree   1.16     06/09/2016    Constructing the Groups of a Given Cubefree Order
cvec   2.5.7     01/08/2017    Compact vectors over finite fields
DESIGN   1.6     23/11/2011    The Design Package for GAP
Digraphs   0.10.1     16/08/2017   
EDIM   1.3.2     12/06/2013    Elementary Divisors of Integer Matrices
Example   3.5.1     04/02/2017    Example/Template of a GAP Package and Guidelines for Package Authors
ExamplesForHomalg   2017.05.25     25/05/2017    Examples for the GAP Package homalg
FactInt   1.5.4     13/02/2017    Advanced Methods for Factoring Integers
FGA   1.3.1     28/02/2016    Free Group Algorithms
FinInG   1.3.3     16/02/2016    Finite Incidence Geometry
float   0.7.6     09/05/2017    Integration of mpfr, mpfi, mpc, fplll and cxsc in GAP
FORMAT   1.3     05/26/2012    Computing with formations of finite solvable groups.
Forms   1.2.3     26/10/2015    Sesquilinear and Quadratic
FPLSA   1.1     17/11/2003    Finitely Presented Lie Algebras
FR   2.4.1     09/02/2017    Computations with functionally recursive groups
fwtree   1.0     23/04/2009    Computing trees related to some pro-p-groups of finite width
GAPDoc   1.6     20/07/2017    A Meta Package for GAP Documentation
Gauss   2017.06.14     14/06/2017    Extended Gauss functionality for GAP
GaussForHomalg   2015.11.06     06/11/2015    Gauss functionality for the homalg project
GBNP   1.0.3     08/03/2016    computing Gröbner bases of noncommutative polynomials
GeneralizedMorphismsForCAP   2017.07.25     25/07/2017    Implementations of generalized morphisms for the CAP project
genss   1.6.4     08/03/2016    Generic Schreier-Sims
GradedModules   2017.05.10     10/05/2017    A homalg based package for the Abelian category of finitely presented graded modules over computable graded rings
GradedRingForHomalg   2017.05.26     26/05/2017    Endow Commutative Rings with an Abelian Grading
GRAPE   4.7     08/01/2016    GRaph Algorithms using PErmutation groups
groupoids   1.51     06/08/2017    Groupoids, graphs of groups, and graphs of groupoids
GrpConst   2.5     07/12/2015    Constructing the Groups of a Given Order
Guarana   0.94     27/04/2012    Applications of Lie methods for computations with infinite polycyclic groups
GUAVA   3.13     31/01/2016    a GAP package for computing with error-correcting codes
HAP   1.11.15     21/02/2017    Homological Algebra Programming
HAPcryst   0.1.11     27/10/2013    A HAP extension for crytallographic groups
HAPprime   0.6     09/06/2011    a HAP extension for small prime power groups
hecke   1.4     02/07/2013    Hecke - Specht 2.4 ported to GAP 4
HeLP   3.1     12/01/2017    Hertweck-Luthar-Passi method.
homalg   2017.05.10     10/05/2017    A homological algebra meta-package for computable Abelian categories
HomalgToCAS   2017.08.01     01/08/2017    A window to the outer world
idrel   2.34     20/10/2016    Identities among relations
IntPic   0.2.1     05/06/2015    A package for drawing integers
IO   4.4.6     08/03/2016    Bindings for low level C library I/O routines
IO_ForHomalg   2017.07.01     01/07/2017    IO capabilities for the homalg project
IRREDSOL   1.4     03/08/2017    A library of irreducible soluble linear groups over finite fields and of finite primivite soluble groups
ITC   1.4     06/01/2004    Interactive Todd-Coxeter
json   1.1.0     01/11/2016    Reading and Writing JSON
kan   1.27     20/10/2016    including double coset rewriting systems
kbmag   1.5.4     01/02/2017    Knuth-Bendix on Monoids and Automatic Groups
LAGUNA   3.7.0     11/11/2014    Lie AlGebras and UNits of group Algebras
liealgdb   2.1     28/03/2010    A database of Lie algebras
LiePRing   1.8     08/11/2013    Database and algorithms for Lie p-rings
LieRing   2.3     01/11/2016    finitely presented Lie rings
linboxing   0.5.2     19/05/2011    access to LinBox linear algebra functions from GAP
LinearAlgebraForCAP   2017.07.25     25/07/2017    Category of Matrices over a Field for CAP
LocalizeRingForHomalg   2017.07.17     17/07/2017    A Package for Localization of Polynomial Rings
loops   3.3.0     26/10/2016    Computing with quasigroups and loops in GAP
lpres   0.4.1     24/02/2017    Nilpotent Quotients of L-Presented Groups
MapClass   1.2     24/04/2012    A Package For Mapping Class Orbit Computation
matgrp   0.4     25/02/2015    Matric Group Interface Routines
MatricesForHomalg   2017.08.02     02/08/2017    Matrices for the homalg project
ModIsom   2.3.3     08/01/2016    Computing automorphisms and checking isomorphisms for modular group algebras of finite p-groups
ModulePresentationsForCAP   2017.07.25     25/07/2017    Category R-pres for CAP
Modules   2017.07.17     17/07/2017    A homalg based package for the Abelian category of finitely presented modules over computable rings
Nilmat   1.2     10/08/2007    Computing with nilpotent matrix groups
NormalizInterface   0.9.8     07/05/2016    GAP wrapper for Normaliz
nq   2.5.3     08/03/2016    Nilpotent Quotients of Finitely Presented Groups
NumericalSgps   1.0.1     05/06/2015    A package for numerical semigroups
OpenMath   11.4.2     28/02/2017    OpenMath functionality in GAP
orb   4.7.6     08/03/2016    Methods to enumerate Orbits
ParGAP   1.4.0     17/11/2013    Parallel GAP
PatternClass   2.3     05/07/2017    A permutation pattern class package
permut   1.03     30/07/2015    A package to deal with permutability in finite groups
Polenta   1.3.7     09/11/2016    Polycyclic presentations for matrix groups
Polycyclic   2.11     07/03/2013    Computation with polycyclic groups
PolymakeInterface   2015.01.26     26/01/2015    A package to provide algorithms for fans and cones of polymake to other packages
polymaking   0.8.1     16/11/2013    Interfacing the geometry software polymake
profiling   1.3.0     23/02/2017    Line by line profiling and code coverage for GAP
qaos   1.5     30/07/2017    Interfacing the QaoS database from GAP
QPA   1.26     02/06/2017    Quivers and Path Algebras
QuaGroup   1.8     16/08/2013    a package for doing computations with quantum groups
RadiRoot   2.7     09/04/2014    Roots of a Polynomial as Radicals
RCWA   4.5.1     13/03/2017    Residue-Class-Wise Affine Groups
RDS   1.6     16/02/2012    A package for searching relative difference sets
recog   1.2.5     08/03/2016    A collection of group recognition methods
recogbase   1.2.5     08/03/2016    A framework for group recognition
Repsn   3.0.2     25/08/2011    A GAP4 Package for constructing representations of finite groups
ResClasses   4.6.0     12/02/2017    Set-Theoretic Computations with Residue Classes
RingsForHomalg   2017.08.02     02/08/2017    Dictionaries of external rings
SCO   2015.11.06     06/11/2015    SCO - Simplicial Cohomology of Orbifolds
SCSCP   2.2.2     28/02/2017    Symbolic Computation Software Composability Protocol in GAP
Semigroups   2.8.0     26/05/2016   
SglPPow   2.0     11/08/2016    Database of groups of prime-power order for some prime-powers
SgpViz   0.998     31/05/2008    A package for semigroup visualization
simpcomp   2.1.6     01/02/2016    A GAP toolbox for simplicial complexes
singular   12.04.28     28/04/2012    The GAP interface to Singular
SLA   1.2     01/11/2016    a package for doing computations with simple Lie algebras
Smallsemi   0.6.11     26/04/2017    A library of small semigroups
SONATA   2.8     29/07/2015    System of nearrings and their applications
Sophus   1.23     03/02/2006    Computing in nilpotent Lie algebras
SpinSym   1.5     01/02/2013    Brauer tables of spin-symmetric groups
SymbCompCC   1.2     19/11/2011    Computing with parametrised presentations for p-groups of fixed coclass
TomLib   1.2.6     07/11/2016    The GAP Library of Tables of Marks
ToolsForHomalg   2017.05.10     10/05/2017    Special methods and knowledge propagation tools
Toric   1.9.4     07/03/2017    toric varieties and some combinatorial geometry computations
ToricVarieties   2012.12.22     22/12/2012    A package to handle toric varieties
unipot   1.2     16/11/2004    Computing with elements of unipotent subgroups of Chevalley groups
UnitLib   3.2.0     11/11/2014    Library of normalized unit groups of modular group algebras
Utils   0.46     08/02/2017    Utility functions in GAP
Wedderga   4.7.3     18/09/2015    Wedderburn Decomposition of Group Algebras
XGAP   4.26     06/11/2016    a graphical user interface for GAP
XMod   2.62     09/08/2017    Crossed Modules and Cat1-Groups
XModAlg   1.12     14/11/2015    Crossed Modules and Cat1-Algebras