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GAP 4.12.1

For an overview of changes in GAP 4.12.1 see file.

Linux and macOS

Download one of the gap-4.12.1.* 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-4.12.1.tar.gz 480 MB sha256: f9ebef11ee31b210ce36e3c70960742b4e253282bbd5270adc9324273c92b016 503 MB sha256: 01c6d6f676e618158f32b12a5e3db5e06fa5a47f65fbcd0a711a56aab45d0a3f

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 installers, 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. Both 32-bit (x86) and 64-bit (x86_64) versions are available. For almost all users, 64-bit GAP is by far the better choice. Please note that the provision of 32-bit Windows installers is likely to be dropped from GAP releases in the near future.

gap-4.12.1-x86.exe 565 MB sha256: 4ca39575c44289abd30589be82012c65ce14b68f095b6af7cfc1379cb1ecfaf6
gap-4.12.1-x86_64.exe 555 MB sha256: e2400dfc551e6559fbf63e2ba63aac82861e4cb65503f97101e5bda0926d2e7a

Packages included in this release

Each of the GAP 4.12.1 archives contains the core GAP system (the source code, data libraries, regression tests and documentation), and the following selection of packages:

4ti2Interface   2022.09-01     19/09/2022    A link to 4ti2
ACE   5.6.1     26/09/2022    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   3.2.1     05/04/2022    Algebraic number theory and an interface to PARI/GP
ANUPQ   3.2.6     07/03/2022    ANU p-Quotient
AtlasRep   2.1.6     19/10/2022    A GAP Interface to the Atlas of Group Representations
AutoDoc   2022.10.20     20/10/2022    Generate documentation from GAP source code
Automata   1.15     20/03/2022    A package on automata
AutomGrp   1.3.2     30/09/2019    Automata groups
AutPGrp   1.11     05/08/2022    Computing the Automorphism Group of a p-Group
Browse   1.8.18     07/10/2022    browsing applications and ncurses interface
CAP   2022.10-06     20/10/2022    Categories, Algorithms, Programming
CaratInterface   2.3.4     29/07/2022    Interface to CARAT, a crystallographic groups package
CddInterface   2022.08.11     11/08/2022    Gap interface to Cdd package
Circle   1.6.5     27/04/2022    Adjoint groups of finite rings
classicpres   1.22     06/05/2022    Classical Group Presentations
cohomolo   1.6.10     30/03/2022    Cohomology groups of finite groups on finite modules
Congruence   1.2.4     27/04/2022    Congruence subgroups of SL(2,Integers)
CoReLG   1.56     24/02/2022    Computing with real Lie algebras
CRIME   1.6     17/03/2022    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   0.10.3     06/10/2022    Hashes and Crypto in GAP
Cryst   4.1.25     29/07/2022    Computing with crystallographic groups
CrystCat   1.1.10     29/07/2022    The crystallographic groups catalog
CTblLib   1.3.4     26/04/2022    The GAP Character Table Library
Cubefree   1.19     21/02/2022    Constructing the Groups of a Given Cubefree Order
curlInterface   2.3.1     25/09/2022    Simple Web Access
cvec   2.7.6     06/08/2022    Compact vectors over finite fields
datastructures   0.2.7     03/03/2022    Collection of standard data structures for GAP
DeepThought   1.0.6     06/10/2022    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   1.6.0     08/09/2022    Graphs, digraphs, and multidigraphs in GAP
EDIM   1.3.6     23/09/2022    Elementary Divisors of Integer Matrices
Example   4.3.2     01/08/2022    Example/Template of a GAP Package
ExamplesForHomalg   2022.10-01     06/10/2022    Examples for the GAP Package homalg
FactInt   1.6.3     15/11/2019    Advanced Methods for Factoring Integers
ferret   1.0.9     18/10/2022    Backtrack Search in Permutation Groups
FGA   1.4.0     23/03/2018    Free Group Algorithms
FinInG   1.5.1     21/09/2022    Finite Incidence Geometry
float   1.0.3     15/02/2022    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   1.2.9     14/10/2022    Sesquilinear and Quadratic
FPLSA   1.2.5     10/03/2022    Finitely Presented Lie Algebras
FR   2.4.10     10/08/2022    Computations with functionally recursive groups
Francy   1.2.5     05/09/2022    Framework for Interactive Discrete Mathematics
fwtree   1.3     28/01/2020    Computing trees related to some pro-p-groups of finite width
GAPDoc   1.6.6     01/07/2022    A Meta Package for GAP Documentation
Gauss   2022.10-01     13/10/2022    Extended Gauss functionality for GAP
GaussForHomalg   2022.08-03     26/08/2022    Gauss functionality for the homalg project
GBNP   1.0.5     09/03/2022    computing Gröbner bases of noncommutative polynomials
GeneralizedMorphismsForCAP   2022.09-01     28/09/2022    Implementations of generalized morphisms for the CAP project
genss   1.6.8     26/09/2022    Generic Schreier-Sims
GradedModules   2022.09-02     28/09/2022    A homalg based package for the Abelian category of finitely presented graded modules over computable graded rings
GradedRingForHomalg   2022.10-01     13/10/2022    Endow Commutative Rings with an Abelian Grading
GRAPE   4.8.5     26/03/2021    GRaph Algorithms using PErmutation groups
groupoids   1.71     07/08/2022    Calculations with finite groupoids and their homomorphisms
GrpConst   2.6.2     28/01/2020    Constructing the Groups of a Given Order
Guarana   0.96.3     11/02/2022    Applications of Lie methods for computations with infinite polycyclic groups
GUAVA   3.17     05/09/2022    a GAP package for computing with error-correcting codes
HAP   1.47     14/08/2022    Homological Algebra Programming
HAPcryst   0.1.15     26/07/2022    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   2022.08-04     22/08/2022    A homological algebra meta-package for computable Abelian categories
HomalgToCAS   2022.10-01     05/10/2022    A window to the outer world
idrel   2.44     04/06/2022    Identities among relations
images   1.3.1     16/11/2021    Minimal and Canonical images
IntPic   0.3.0     02/06/2022    A package for drawing integers
IO   4.8.0     18/10/2022    Bindings for low level C library I/O routines
IO_ForHomalg   2022.09-01     06/09/2022    IO capabilities for the homalg project
IRREDSOL   1.4.3     01/07/2021    A library of irreducible soluble linear groups over finite fields and of finite primivite soluble groups
ITC   1.5.1     01/03/2022    Interactive Todd-Coxeter
json   2.1.1     18/10/2022    Reading and Writing JSON
JupyterKernel   1.4.1     01/09/2021    Jupyter kernel written in GAP
JupyterViz   1.5.6     16/08/2022    Visualization Tools for Jupyter and the GAP REPL
kan   1.34     13/03/2022    including double coset rewriting systems
kbmag   1.5.10     23/09/2022    Knuth-Bendix on Monoids and Automatic Groups
LAGUNA   3.9.5     27/04/2022    Lie AlGebras and UNits of group Algebras
LieAlgDB   2.2.1     07/10/2019    A database of Lie algebras
LiePRing   2.7     05/08/2022    Database and algorithms for Lie p-rings
LieRing   2.4.2     10/02/2022    Computing with finitely presented Lie rings
LinearAlgebraForCAP   2022.10-03     20/10/2022    Category of Matrices over a Field for CAP
LocalizeRingForHomalg   2022.09-01     06/09/2022    A Package for Localization of Polynomial Rings
loops   3.4.2     31/07/2022    Computing with quasigroups and loops in GAP
lpres   1.0.3     20/03/2022    Nilpotent Quotients of L-Presented Groups
MajoranaAlgebras   1.5     20/10/2022    A package for constructing Majorana algebras and representations
MapClass   1.4.6     17/09/2022    A Package For Mapping Class Orbit Computation
matgrp   0.70     01/03/2022    Matric Group Interface Routines
MatricesForHomalg   2022.10-05     14/10/2022    Matrices for the homalg project
ModIsom   2.5.3     09/08/2022    Computing automorphisms and checking isomorphisms for modular group algebras of finite p-groups
ModulePresentationsForCAP   2022.10-04     20/10/2022    Category R-pres for CAP
Modules   2022.09-01     07/09/2022    A homalg based package for the Abelian category of finitely presented modules over computable rings
MonoidalCategories   2022.10-01     10/10/2022    Monoidal and monoidal (co)closed categories
NConvex   2022.09-01     30/09/2022    A Gap package to perform polyhedral computations
Nilmat   1.4.2     05/08/2022    Computing with nilpotent matrix groups
NoCK   1.5     30/03/2022    Computing obstruction for the existence of compact Clifford-Klein form
NormalizInterface   1.3.4     07/08/2022    GAP wrapper for Normaliz
nq   2.5.8     04/04/2022    Nilpotent Quotients of Finitely Presented Groups
NumericalSgps   1.3.1     27/07/2022    A package for numerical semigroups
OpenMath   11.5.1     29/04/2022    OpenMath functionality in GAP
orb   4.9.0     26/09/2022    Methods to enumerate orbits
PackageManager   1.3.2     06/10/2022    Easily download and install GAP packages
PatternClass   2.4.3     17/10/2022    A permutation pattern class package
permut   2.0.4     27/03/2022    A package to deal with permutability in finite groups
Polenta   1.3.10     29/03/2022    Polycyclic presentations for matrix groups
Polycyclic   2.16     25/07/2020    Computation with polycyclic groups
polymaking   0.8.6     08/07/2021    Interfacing the geometry software polymake
PrimGrp   3.4.2     03/05/2022    GAP Primitive Permutation Groups Library
profiling   2.5.1     10/10/2022    Line by line profiling and code coverage for GAP
QPA   1.34     02/08/2022    Quivers and Path Algebras
QuaGroup   1.8.3     10/02/2022    Computations with quantum groups
RadiRoot   2.9     01/03/2022    Roots of a Polynomial as Radicals
RCWA   4.7.0     29/07/2022    Residue-Class-Wise Affine Groups
RDS   1.8     21/02/2022    A package for searching relative difference sets
recog   1.4.2     27/09/2022    A package for constructive recognition of permutation and matrix groups
RepnDecomp   1.2.1     02/03/2022    Decompose representations of finite groups into irreducibles
Repsn   3.1.0     22/02/2019    Constructing representations of finite groups
ResClasses   4.7.3     29/07/2022    Set-Theoretic Computations with Residue Classes
RingsForHomalg   2022.10-02     13/10/2022    Dictionaries of external rings
SCO   2022.09-01     07/09/2022    SCO - Simplicial Cohomology of Orbifolds
SCSCP   2.3.1     22/01/2020    Symbolic Computation Software Composability Protocol in GAP
Semigroups   5.0.2     12/08/2022    A package for semigroups and monoids
SglPPow   2.2     05/04/2022    Database of groups of prime-power order for some prime-powers
SgpViz   0.999.5     20/03/2022    A package for semigroup visualization
simpcomp   2.1.14     15/03/2022    A GAP toolbox for simplicial complexes
singular   2022.09.23     23/09/2022    A GAP interface to Singular
SLA   1.5.3     15/11/2019    Computing with simple Lie algebras
SmallGrp   1.5     06/04/2022    The GAP Small Groups Library
Smallsemi   0.6.13     28/02/2022    A library of small semigroups
SONATA   2.9.5     14/10/2022    System of nearrings and their applications
Sophus   1.27     09/08/2022    Computing in nilpotent Lie algebras
SpinSym   1.5.2     01/10/2019    Brauer tables of spin-symmetric groups
StandardFF   0.9.4     15/08/2022    Standard finite fields and cyclic generators
SymbCompCC   1.3.2     10/02/2022    Computing with parametrised presentations for p-groups of fixed coclass
Thelma   1.3     03/03/2022    THreshold ELements, Modeling and Applications
TomLib   1.2.9     23/10/2019    The GAP Library of Tables of Marks
ToolsForHomalg   2022.09-08     28/09/2022    Special methods and knowledge propagation tools
Toric   1.9.5     07/10/2019    toric varieties and some combinatorial geometry computations
ToricVarieties   2022.07.13     13/07/2022    A package to handle toric varieties
TransGrp   3.6.3     19/07/2022    Transitive Groups Library
UGALY   4.0.3     14/07/2022    Universal Groups Acting LocallY
Unipot   1.5     22/02/2022    Computing with elements of unipotent subgroups of Chevalley groups
UnitLib   4.1.0     26/04/2022    Library of normalized unit groups of modular group algebras
utils   0.77     25/09/2022    Utility functions in GAP
uuid   0.7     01/03/2022    RFC 4122 UUIDs
walrus   0.9991     21/02/2022    A new approach to proving hyperbolicity
Wedderga   4.10.2     29/04/2022    Wedderburn Decomposition of Group Algebras
XGAP   4.31     17/02/2022    a graphical user interface for GAP
XMod   2.88     28/04/2022    Crossed Modules and Cat1-Groups
XModAlg   1.22     29/04/2022    Crossed Modules and Cat1-Algebras
YangBaxter   0.10.1     14/08/2022    Combinatorial Solutions for the Yang-Baxter equation
ZeroMQInterface   0.14     29/07/2022    ZeroMQ bindings for GAP