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GAP 4.11.1

For an overview of changes in GAP 4.11.1 see file.

Linux and macOS

Download one of the gap-4.11.1.* 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.

gap-4.11.1.tar.gz 487 MB sha256: 6635c5da7d82755f8339486b9cac33766f58712f297e8234fba40818902ea304 523 MB sha256: 310c3bf9c33c751ad8766e331662282ea580fa7c6f628fd549b5b3e3a72c8331

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.


For users of Windows 10, we strongly recommend using GAP via the Windows Subsystem for Linux.

Otherwise, we recommend the use of the following .exe installer, which contains 64-bit 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 GAP in C:\gap-4.11.1 (default), D:\gap-4.11.1 or C:\Math\GAP\gap-4.11.1, but you must not install it in a directory named like C:\Program files\gap-4.11.1 or C:\Users\alice\My Documents\gap-4.11.1 etc.

gap-4.11.1.exe 637 MB sha256: cf5df64588514426dd0c9a46c058b9e4f7bf7c9be7f6ccd566a3029a7e4c2b03

Packages included in this release

Each of the GAP 4.11.1 archives contains the core GAP system (the source code, data libraries, regression tests and documentation), and the following selection of packages:

4ti2Interface   2020.10-02     16/10/2020    A link to 4ti2
ACE   5.3     12/02/2020    Advanced Coset Enumerator
AClib   1.3.2     28/01/2020    Almost Crystallographic Groups - A Library and Algorithms
AGT   0.2     02/03/2020    Algebraic Graph Theory
Alnuth   3.1.2     28/01/2020    Algebraic number theory and an interface to PARI/GP
ANUPQ   3.2.1     18/04/2019    ANU p-Quotient
AtlasRep   2.1.0     10/05/2019    A GAP Interface to the Atlas of Group Representations
AutoDoc   2020.08.11     11/08/2020    Generate documentation from GAP source code
Automata   1.14     26/09/2018    A package on automata
AutomGrp   1.3.2     30/09/2019    Automata groups
AutPGrp   1.10.2     28/01/2020    Computing the Automorphism Group of a p-Group
Browse   1.8.11     28/08/2020    browsing applications and ncurses interface
CAP   2020.10-01     19/10/2020    Categories, Algorithms, Programming
CaratInterface   2.3.3     20/12/2019    Interface to CARAT, a crystallographic groups package
CddInterface   2020.06.24     24/06/2020    Gap interface to Cdd package
Circle   1.6.3     01/11/2019    Adjoint groups of finite rings
cohomolo   1.6.8     07/07/2019    Cohomology groups of finite groups on finite modules
Congruence   1.2.3     19/05/2019    Congruence subgroups of SL(2,Integers)
CoReLG   1.54     17/01/2020    Computing with real Lie algebras
CRIME   1.5     11/10/2018    A GAP Package to Calculate Group Cohomology and Massey Products
CRISP   1.4.5     07/11/2019    Computing with Radicals, Injectors, Schunck classes and Projectors
crypting   0.10     28/10/2019    Hashes and Crypto in GAP
Cryst   4.1.23     10/12/2019    Computing with crystallographic groups
CrystCat   1.1.9     28/05/2019    The crystallographic groups catalog
CTblLib   1.3.1     08/04/2020    The GAP Character Table Library
Cubefree   1.18     30/09/2019    Constructing the Groups of a Given Cubefree Order
curlInterface   2.2.1     03/04/2020    Simple Web Access
cvec   2.7.4     17/07/2019    Compact vectors over finite fields
datastructures   0.2.5     11/11/2019    Collection of standard data structures for GAP
DeepThought   1.0.2     13/09/2018    This package provides functions for computations in finitely generated nilpotent groups based on the Deep Thought algorithm.
DESIGN   1.7     18/03/2019    The Design Package for GAP
DifSets   2.3.1     14/09/2019    an algorithm for enumerating all difference sets in a group
Digraphs   1.3.1     27/11/2020    Graphs, digraphs, and multidigraphs in GAP
EDIM   1.3.5     13/08/2019    Elementary Divisors of Integer Matrices
Example   4.2.1     09/12/2019    Example/Template of a GAP Package
ExamplesForHomalg   2020.10-02     16/10/2020    Examples for the GAP Package homalg
FactInt   1.6.3     15/11/2019    Advanced Methods for Factoring Integers
ferret   1.0.3     27/05/2020    Backtrack Search in Permutation Groups
FGA   1.4.0     23/03/2018    Free Group Algorithms
FinInG   1.4.1     31/03/2018    Finite Incidence Geometry
float   0.9.1     14/06/2018    Integration of mpfr, mpfi, mpc, fplll and cxsc in GAP
FORMAT   1.4.3     28/01/2020    Computing with formations of finite solvable groups.
Forms   1.2.5     27/09/2018    Sesquilinear and Quadratic
FPLSA   1.2.4     07/07/2019    Finitely Presented Lie Algebras
FR   2.4.6     03/11/2018    Computations with functionally recursive groups
Francy   1.2.4     17/05/2019    Framework for Interactive Discrete Mathematics
fwtree   1.3     28/01/2020    Computing trees related to some pro-p-groups of finite width
GAPDoc   1.6.4     11/08/2020    A Meta Package for GAP Documentation
Gauss   2020.10-02     16/10/2020    Extended Gauss functionality for GAP
GaussForHomalg   2020.10-02     16/10/2020    Gauss functionality for the homalg project
GBNP   1.0.3     08/03/2016    computing Gröbner bases of noncommutative polynomials
GeneralizedMorphismsForCAP   2020.10-01     19/10/2020    Implementations of generalized morphisms for the CAP project
genss   1.6.6     18/07/2018    Generic Schreier-Sims
GradedModules   2020.10-02     16/10/2020    A homalg based package for the Abelian category of finitely presented graded modules over computable graded rings
GradedRingForHomalg   2020.10-02     16/10/2020    Endow Commutative Rings with an Abelian Grading
GRAPE   4.8.3     09/12/2019    GRaph Algorithms using PErmutation groups
groupoids   1.68     04/09/2019    Calculations with finite groupoids and their homomorphisms
GrpConst   2.6.2     28/01/2020    Constructing the Groups of a Given Order
Guarana   0.96.2     15/11/2018    Applications of Lie methods for computations with infinite polycyclic groups
GUAVA   3.15     13/04/2019    a GAP package for computing with error-correcting codes
HAP   1.29     07/01/2021    Homological Algebra Programming
HAPcryst   0.1.13     10/02/2020    A HAP extension for crystallographic groups
hecke   1.5.3     01/09/2019    Calculating decomposition matrices of Hecke algebras
HeLP   3.5     20/12/2019    Hertweck-Luthar-Passi method.
homalg   2020.10-02     16/10/2020    A homological algebra meta-package for computable Abelian categories
HomalgToCAS   2020.10-02     16/10/2020    A window to the outer world
idrel   2.43     29/05/2019    Identities among relations
images   1.3.0     21/03/2019    Minimal and Canonical images
IntPic   0.2.4     23/08/2019    A package for drawing integers
IO   4.7.0     17/07/2019    Bindings for low level C library I/O routines
IO_ForHomalg   2020.10-02     16/10/2020    IO capabilities for the homalg project
IRREDSOL   1.4.1     10/03/2020    A library of irreducible soluble linear groups over finite fields and of finite primivite soluble groups
ITC   1.5     13/06/2018    Interactive Todd-Coxeter
json   2.0.2     03/04/2020    Reading and Writing JSON
JupyterKernel   1.3     23/02/2019    Jupyter kernel written in GAP
JupyterViz   1.5.1     28/03/2019    Visualization Tools for Jupyter and the GAP REPL
kan   1.32     16/07/2020    including double coset rewriting systems
kbmag   1.5.9     07/07/2019    Knuth-Bendix on Monoids and Automatic Groups
LAGUNA   3.9.3     19/05/2019    Lie AlGebras and UNits of group Algebras
LieAlgDB   2.2.1     07/10/2019    A database of Lie algebras
LiePRing   1.9.2     11/10/2018    Database and algorithms for Lie p-rings
LieRing   2.4.1     23/02/2019    Computing with finitely presented Lie rings
LinearAlgebraForCAP   2020.10-01     19/10/2020    Category of Matrices over a Field for CAP
LocalizeRingForHomalg   2020.10-02     16/10/2020    A Package for Localization of Polynomial Rings
loops   3.4.1     06/11/2018    Computing with quasigroups and loops in GAP
lpres   1.0.1     14/11/2018    Nilpotent Quotients of L-Presented Groups
MajoranaAlgebras   1.4     06/12/2018    A package for constructing Majorana algebras and representations
MapClass   1.4.4     02/12/2018    A Package For Mapping Class Orbit Computation
matgrp   0.64     25/08/2020    Matric Group Interface Routines
MatricesForHomalg   2020.10-04     24/10/2020    Matrices for the homalg project
ModIsom   2.5.1     28/01/2020    Computing automorphisms and checking isomorphisms for modular group algebras of finite p-groups
ModulePresentationsForCAP   2020.10-01     19/10/2020    Category R-pres for CAP
Modules   2020.10-02     16/10/2020    A homalg based package for the Abelian category of finitely presented modules over computable rings
MonoidalCategories   2020.10-01     19/10/2020    Monoidal and monoidal (co)closed categories
NConvex   2020.11-04     04/11/2020    A Gap package to perform polyhedral computations
Nilmat   1.4     09/02/2020    Computing with nilpotent matrix groups
NoCK   1.4     22/10/2019    NoCK-Package for computing obstruction for compact Clifford-Klein forms.
NormalizInterface   1.1.0     23/08/2019    GAP wrapper for Normaliz
nq   2.5.4     15/02/2019    Nilpotent Quotients of Finitely Presented Groups
NumericalSgps   1.2.2     03/03/2020    A package for numerical semigroups
OpenMath   11.5.0     09/02/2020    OpenMath functionality in GAP
orb   4.8.3     03/09/2019    Methods to enumerate orbits
PackageManager   1.1     14/10/2020    Easily download and install GAP packages
PatternClass   2.4.2     24/07/2018    A permutation pattern class package
permut   2.0.3     19/08/2018    A package to deal with permutability in finite groups
Polenta   1.3.9     01/10/2019    Polycyclic presentations for matrix groups
Polycyclic   2.16     25/07/2020    Computation with polycyclic groups
polymaking   0.8.2     23/02/2019    Interfacing the geometry software polymake
PrimGrp   3.4.1     05/05/2020    GAP Primitive Permutation Groups Library
profiling   2.3     03/04/2020    Line by line profiling and code coverage for GAP
QPA   1.31     09/09/2020    Quivers and Path Algebras
QuaGroup   1.8.2     01/10/2019    Computations with quantum groups
RadiRoot   2.8     23/04/2018    Roots of a Polynomial as Radicals
RCWA   4.6.4     24/03/2019    Residue-Class-Wise Affine Groups
RDS   1.7     23/02/2019    A package for searching relative difference sets
recog   1.3.2     15/04/2018    A collection of group recognition methods
RepnDecomp   1.1.0     15/02/2020    Decompose representations of finite groups into irreducibles
Repsn   3.1.0     22/02/2019    Constructing representations of finite groups
ResClasses   4.7.2     24/03/2019    Set-Theoretic Computations with Residue Classes
RingsForHomalg   2020.11-01     27/11/2020    Dictionaries of external rings
SCO   2020.10-02     16/10/2020    SCO - Simplicial Cohomology of Orbifolds
SCSCP   2.3.1     22/01/2020    Symbolic Computation Software Composability Protocol in GAP
Semigroups   3.4.0     28/08/2020    A package for semigroups and monoids
SglPPow   2.1     08/03/2018    Database of groups of prime-power order for some prime-powers
SgpViz   0.999.4     29/10/2018    A package for semigroup visualization
simpcomp   2.1.10     03/06/2019    A GAP toolbox for simplicial complexes
singular   2020.12.18     18/12/2020    A GAP interface to Singular
SLA   1.5.3     15/11/2019    Computing with simple Lie algebras
SmallGrp   1.4.2     18/12/2020    The GAP Small Groups Library
Smallsemi   0.6.12     16/08/2019    A library of small semigroups
SONATA   2.9.1     07/10/2018    System of nearrings and their applications
Sophus   1.24     09/04/2018    Computing in nilpotent Lie algebras
SpinSym   1.5.2     01/10/2019    Brauer tables of spin-symmetric groups
SymbCompCC   1.3.1     27/09/2019    Computing with parametrised presentations for p-groups of fixed coclass
Thelma   1.02     06/02/2019    A package on threshold elements
TomLib   1.2.9     23/10/2019    The GAP Library of Tables of Marks
ToolsForHomalg   2020.10-03     22/10/2020    Special methods and knowledge propagation tools
Toric   1.9.5     07/10/2019    toric varieties and some combinatorial geometry computations
ToricVarieties   2021.01.12     12/01/2021    A package to handle toric varieties
TransGrp   3.0     01/08/2020    Transitive Groups Library
Unipot   1.4     09/04/2018    Computing with elements of unipotent subgroups of Chevalley groups
UnitLib   4.0.0     01/05/2018    Library of normalized unit groups of modular group algebras
utils   0.69     29/11/2019    Utility functions in GAP
uuid   0.6     22/09/2018    RFC 4122 UUIDs
walrus   0.999     19/12/2019    A new approach to proving hyperbolicity
Wedderga   4.10.0     15/05/2020    Wedderburn Decomposition of Group Algebras
XGAP   4.30     16/04/2019    a graphical user interface for GAP
XMod   2.82     23/10/2020    Crossed Modules and Cat1-Groups
XModAlg   1.18     17/11/2020    Crossed Modules and Cat1-Algebras
YangBaxter   0.9.0     08/11/2019    Combinatorial Solutions for the Yang-Baxter equation
ZeroMQInterface   0.12     01/11/2019    ZeroMQ bindings for GAP