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GAP Packages

Since 1992, sets of user contributed programs, called packages, have been distributed with GAP. For convenience of the GAP users, the GAP Group redistributes packages, but the package authors remain responsible for their maintenance.

There is a designated and documented mechanism for loading packages into GAP including a smooth integration of the documentation into the GAP help system. (See this page for hints how to write your own package and the reference manual chapter about installing and loading packages.)

Some packages represent a piece of work equivalent to a sizeable mathematical publication. To acknowledge such work there has been a refereeing process for packages since 1996. See Submitting Contributions to GAP for more information on this. We call a package an accepted package (with GAP 3 the term share packages was used) when it was successfully refereed or already distributed with GAP before the refereeing process was started. All other packages distributed here and not in this category are called deposited packages, these may be submitted for refereeing or the authors may not want to submit them for various reasons.

This page lists current versions of GAP packages redistributed with GAP, and the page Manuals informs about presently available package manuals.

If you are interested to find GAP packages hosted on GitHub or BitBucket, please see this page.

If you are familiar with the previous GAP distributions, note that now we do not distribute a merged archive of all currently redistributed packages. All these packages are now included in the same archive with the core GAP system, adding a significant amount of functionality. Dependencies between packages are illustrated by the following graph. Each package is also available in a single archive which may be used e.g. for a later upgrading, though the recommended way to upgrade the system is just to reinstall it as explained on the upgrade page.

Also see Data Libraries, Deposited Contributions, and Undeposited Implementations.

Accepted Packages

Here is the current list of accepted packages. They are either redistributed by the GAP Group since before the refereeing process was setup, or they have been successfully refereed. The packages are sorted alphabetically, except for some data library packages, given in a separate list.

Follow the links to find brief descriptions of each package, as well as further information including download and installation instructions.

  • ACE 5.3 (12/02/2020) by G. Gamble, A. Hulpke, G. Havas, C. Ramsay, M. Horn.
    Advanced Coset Enumerator
  • Alnuth 3.1.2 (28/01/2020) by B. Assmann, A. Distler, B. Eick.
    Algebraic number theory and an interface to PARI/GP
  • ANUPQ 3.2.1 (18/04/2019) by G. Gamble, W. Nickel, E. O'Brien, M. Horn.
    ANU p-Quotient
  • Automata 1.14 (26/09/2018) by M. Delgado, S. Linton, J. J. Morais.
    A package on automata
  • AutomGrp 1.3.2 (30/09/2019) by Y. Muntyan, D. Savchuk.
    Automata groups
  • AutPGrp 1.10.2 (28/01/2020) by B. Eick, M. Horn, E. O'Brien.
    Computing the Automorphism Group of a p-Group
  • CaratInterface 2.3.3 (20/12/2019) by F. Gähler.
    Interface to CARAT, a crystallographic groups package
  • Circle 1.6.3 (01/11/2019) by A. Konovalov, P. Soules.
    Adjoint groups of finite rings
  • cohomolo 1.6.8 (07/07/2019) by D. Holt, The GAP Team.
    Cohomology groups of finite groups on finite modules
  • Congruence 1.2.3 (19/05/2019) by A. Dooms, E. Jespers, A. Konovalov, H. Verrill.
    Congruence subgroups of SL(2,Integers)
  • CoReLG 1.54 (17/01/2020) by H. Dietrich, P. Faccin, W. de Graaf.
    Computing with real Lie algebras
  • CRIME 1.5 (11/10/2018) by M. Bishop, The GAP Team.
    A GAP Package to Calculate Group Cohomology and Massey Products
  • CRISP 1.4.5 (07/11/2019) by B. Höfling.
    Computing with Radicals, Injectors, Schunck classes and Projectors
  • Cryst 4.1.23 (10/12/2019) by B. Eick, F. Gähler, W. Nickel.
    Computing with crystallographic groups
  • Cubefree 1.18 (30/09/2019) by H. Dietrich.
    Constructing the Groups of a Given Cubefree Order
  • DESIGN 1.7 (18/03/2019) by L. H. Soicher.
    The Design Package for GAP
  • DifSets 2.3.1 (14/09/2019) by D. Peifer.
    an algorithm for enumerating all difference sets in a group
  • EDIM 1.3.5 (13/08/2019) by F. Lübeck.
    Elementary Divisors of Integer Matrices
  • FactInt 1.6.3 (15/11/2019) by S. Kohl, A. Konovalov.
    Advanced Methods for Factoring Integers
  • FGA 1.4.0 (23/03/2018) by C. Sievers.
    Free Group Algorithms
  • FinInG 1.4.1 (31/03/2018) by J. Bamberg, A. Betten, J. De Beule, P. Cara, M. Lavrauw, M. Neunhoeffer.
    Finite Incidence Geometry
  • FORMAT 1.4.3 (28/01/2020) by B. Eick, C. R. Wright, The GAP Team.
    Computing with formations of finite solvable groups.
  • Forms 1.2.5 (27/09/2018) by J. Bamberg, J. De Beule.
    Sesquilinear and Quadratic
  • FPLSA 1.2.4 (07/07/2019) by V. Gerdt, V. Kornyak, M. Horn.
    Finitely Presented Lie Algebras
  • GAPDoc 1.6.4 (11/08/2020) by F. Lübeck, M. Neunhöffer.
    A Meta Package for GAP Documentation
  • GBNP 1.0.3 (08/03/2016) by A. Cohen, J. Knopper.
    computing Gröbner bases of noncommutative polynomials
  • GRAPE 4.8.3 (09/12/2019) by L. H. Soicher.
    GRaph Algorithms using PErmutation groups
  • groupoids 1.68 (04/09/2019) by E. J. Moore, C. D. Wensley.
    Calculations with finite groupoids and their homomorphisms
  • GrpConst 2.6.2 (28/01/2020) by H. U. Besche, B. Eick, M. Horn.
    Constructing the Groups of a Given Order
  • GUAVA 3.15 (13/04/2019) by R. Baart, T. Boothby, J. Cramwinckel, J. Fields, D. Joyner, R. Miller, E. Minkes, E. Roijackers, L. Ruscio, C. Tjhai.
    a GAP package for computing with error-correcting codes
  • HAP 1.29 (07/01/2021) by G. Ellis.
    Homological Algebra Programming
  • idrel 2.43 (29/05/2019) by A. Heyworth, C. D. Wensley.
    Identities among relations
  • IRREDSOL 1.4.1 (10/03/2020) by B. Höfling.
    A library of irreducible soluble linear groups over finite fields and of finite primivite soluble groups
  • ITC 1.5 (13/06/2018) by V. Felsch, L. Hippe, J. Neubüser, The GAP Team.
    Interactive Todd-Coxeter
  • kan 1.32 (16/07/2020) by A. Heyworth, C. Wensley.
    including double coset rewriting systems
  • kbmag 1.5.9 (07/07/2019) by D. Holt, The GAP Team.
    Knuth-Bendix on Monoids and Automatic Groups
  • LAGUNA 3.9.3 (19/05/2019) by V. Bovdi, A. Konovalov, R. Rossmanith, C. Schneider.
    Lie AlGebras and UNits of group Algebras
  • LieAlgDB 2.2.1 (07/10/2019) by S. Cicalò, W. A. de Graaf, C. Schneider, The GAP Team.
    A database of Lie algebras
  • LiePRing 1.9.2 (11/10/2018) by M. Vaughan-Lee, B. Eick.
    Database and algorithms for Lie p-rings
  • LieRing 2.4.1 (23/02/2019) by S. Cicalò, W. A. de Graaf, The GAP Team.
    Computing with finitely presented Lie rings
  • loops 3.4.1 (06/11/2018) by G. Nagy, P. Vojtěchovský.
    Computing with quasigroups and loops in GAP
  • lpres 1.0.1 (14/11/2018) by R. Hartung, L. Bartholdi.
    Nilpotent Quotients of L-Presented Groups
  • MapClass 1.4.4 (02/12/2018) by A. James, K. Magaard, S. Shpectorov, H. Volklein.
    A Package For Mapping Class Orbit Computation
  • ModIsom 2.5.1 (28/01/2020) by B. Eick, A. Konovalov.
    Computing automorphisms and checking isomorphisms for modular group algebras of finite p-groups
  • Nilmat 1.4 (09/02/2020) by A. Detinko, B. Eick, D. Flannery.
    Computing with nilpotent matrix groups
  • NoCK 1.4 (22/10/2019) by M. Bocheński, P. Jastrzębski, A. Szczepkowska, A. Tralle, A. Woike.
    NoCK-Package for computing obstruction for compact Clifford-Klein forms.
  • nq 2.5.4 (15/02/2019) by M. Horn, W. Nickel.
    Nilpotent Quotients of Finitely Presented Groups
  • NumericalSgps 1.2.2 (03/03/2020) by M. Delgado, P. A. Garcia-Sanchez, J. Morais, C. Cisco, B. A. Heredia, J. I. García-García, S. Gutsche, A. Herrera-Poyatos, M. Horn, H. Martin Cruz, N. Maugeri, C. J. Moreno Ávila, I. Ojeda, C. O'Neill, A. Sammartano, A. Sánchez-R. Navarro, K. Stokes, S. Francesco, G. Zito.
    A package for numerical semigroups
  • OpenMath 11.5.0 (09/02/2020) by M. Costantini, A. Konovalov, M. Nicosia, A. Solomon.
    OpenMath functionality in GAP
  • permut 2.0.3 (19/08/2018) by A. Ballester-Bolinches, E. Cosme-Llópez, R. Esteban-Romero.
    A package to deal with permutability in finite groups
  • Polenta 1.3.9 (01/10/2019) by B. Assmann, M. Horn.
    Polycyclic presentations for matrix groups
  • Polycyclic 2.16 (25/07/2020) by B. Eick, W. Nickel, M. Horn.
    Computation with polycyclic groups
  • QuaGroup 1.8.2 (01/10/2019) by W. A. de Graaf, The GAP Team.
    Computations with quantum groups
  • RadiRoot 2.8 (23/04/2018) by A. Distler, The GAP Team.
    Roots of a Polynomial as Radicals
  • RCWA 4.6.4 (24/03/2019) by S. Kohl.
    Residue-Class-Wise Affine Groups
  • RDS 1.7 (23/02/2019) by M. Roeder, The GAP Team.
    A package for searching relative difference sets
  • Repsn 3.1.0 (22/02/2019) by V. Dabbaghian, The GAP Team.
    Constructing representations of finite groups
  • SCSCP 2.3.1 (22/01/2020) by A. Konovalov, S. Linton.
    Symbolic Computation Software Composability Protocol in GAP
  • SglPPow 2.1 (08/03/2018) by M. Vaughan-Lee, B. Eick.
    Database of groups of prime-power order for some prime-powers
  • simpcomp 2.1.10 (03/06/2019) by F. Effenberger, J. Spreer.
    A GAP toolbox for simplicial complexes
  • SLA 1.5.3 (15/11/2019) by W. A. de Graaf, The GAP Team.
    Computing with simple Lie algebras
  • SONATA 2.9.1 (07/10/2018) by E. Aichinger, F. Binder, J. Ecker, P. Mayr, C. Nöbauer.
    System of nearrings and their applications
  • Sophus 1.24 (09/04/2018) by C. Schneider, The GAP Team.
    Computing in nilpotent Lie algebras
  • SymbCompCC 1.3.1 (27/09/2019) by D. Feichtenschlager, The GAP Team.
    Computing with parametrised presentations for p-groups of fixed coclass
  • Toric 1.9.5 (07/10/2019) by D. Joyner, The GAP Team.
    toric varieties and some combinatorial geometry computations
  • UnitLib 4.0.0 (01/05/2018) by A. Konovalov, E. Yakimenko.
    Library of normalized unit groups of modular group algebras
  • Wedderga 4.10.0 (15/05/2020) by G. K. Bakshi, O. Broche Cristo, A. Herman, A. Konovalov, S. Maheshwary, G. Olteanu, A. Olivieri, A. del Rio, I. Van Gelder.
    Wedderburn Decomposition of Group Algebras
  • XGAP 4.30 (16/04/2019) by F. Celler, M. Horn, M. Neunhöffer.
    a graphical user interface for GAP
  • XMod 2.82 (23/10/2020) by C. Wensley, M. Alp, A. Odabas, E. O. Uslu.
    Crossed Modules and Cat1-Groups

The following packages mainly contain and/or provide access to data libraries. These are either refereed and accepted packages or they were a part of the GAP library which is now separated into a package.

  • AClib 1.3.2 (28/01/2020) by K. Dekimpe, B. Eick.
    Almost Crystallographic Groups - A Library and Algorithms
  • AtlasRep 2.1.0 (10/05/2019) by R. A. Wilson, R. A. Parker, S. Nickerson, J. N. Bray, T. Breuer.
    A GAP Interface to the Atlas of Group Representations
  • CrystCat 1.1.9 (28/05/2019) by V. Felsch, F. Gähler.
    The crystallographic groups catalog
  • CTblLib 1.3.1 (08/04/2020) by T. Breuer.
    The GAP Character Table Library
  • PrimGrp 3.4.1 (05/05/2020) by A. Hulpke, A. Konovalov, C. M. Roney-Dougal, C. Russell.
    GAP Primitive Permutation Groups Library
  • SmallGrp 1.4.2 (18/12/2020) by H. U. Besche, B. Eick, E. O'Brien, The GAP Team.
    The GAP Small Groups Library
  • TomLib 1.2.9 (23/10/2019) by T. Merkwitz, L. Naughton, G. Pfeiffer.
    The GAP Library of Tables of Marks
  • TransGrp 3.0 (01/08/2020) by A. Hulpke.
    Transitive Groups Library

Deposited Packages

Some of the following packages may be refereed and moved into the section on accepted packages later, others will not be submitted for refereeing.

  • 4ti2Interface 2020.10-02 (16/10/2020) by S. Gutsche.
    A link to 4ti2
  • AGT 0.2 (02/03/2020) by R. J. Evans.
    Algebraic Graph Theory
  • AutoDoc 2020.08.11 (11/08/2020) by S. Gutsche, M. Horn, M. Barakat, M. Pfeiffer, Ø. Skartsæterhagen, C. Wensley, G. Whitney, F. Zickgraf.
    Generate documentation from GAP source code
  • Browse 1.8.11 (28/08/2020) by T. Breuer, F. Lübeck.
    browsing applications and ncurses interface
  • CAP 2020.10-01 (19/10/2020) by S. Gutsche, S. Posur, Ø. Skartsæterhagen.
    Categories, Algorithms, Programming
  • CddInterface 2020.06.24 (24/06/2020) by K. Saleh.
    Gap interface to Cdd package
  • crypting 0.10 (28/10/2019) by M. Pfeiffer, The GAP Team.
    Hashes and Crypto in GAP
  • curlInterface 2.2.1 (03/04/2020) by C. Jefferson, M. Torpey.
    Simple Web Access
  • cvec 2.7.4 (17/07/2019) by M. Neunhöffer, M. Horn.
    Compact vectors over finite fields
  • datastructures 0.2.5 (11/11/2019) by M. Pfeiffer, M. Horn, C. Jefferson, S. Linton.
    Collection of standard data structures for GAP
  • DeepThought 1.0.2 (13/09/2018) by N. Wagner, M. Horn.
    This package provides functions for computations in finitely generated nilpotent groups based on the Deep Thought algorithm.
  • Digraphs 1.3.1 (27/11/2020) by J. De Beule, S. Burrell, R. Cirpons, L. Elliott, M. Horn, C. Jefferson, J. Jonusas, J. Mitchell, M. Pfeiffer, C. Russell, F. Smith, M. Torpey, M. Tsalakou, M. Whyte, W. A. Wilson.
    Graphs, digraphs, and multidigraphs in GAP
  • Example 4.2.1 (09/12/2019) by W. Nickel, G. Gamble, A. Konovalov.
    Example/Template of a GAP Package
  • ExamplesForHomalg 2020.10-02 (16/10/2020) by M. Barakat, S. Görtzen, M. Lange-Hegermann.
    Examples for the GAP Package homalg
  • ferret 1.0.3 (27/05/2020) by C. Jefferson.
    Backtrack Search in Permutation Groups
  • float 0.9.1 (14/06/2018) by L. Bartholdi.
    Integration of mpfr, mpfi, mpc, fplll and cxsc in GAP
  • FR 2.4.6 (03/11/2018) by L. Bartholdi.
    Computations with functionally recursive groups
  • Francy 1.2.4 (17/05/2019) by M. Martins.
    Framework for Interactive Discrete Mathematics
  • fwtree 1.3 (28/01/2020) by B. Eick, T. Rossmann, The GAP Team.
    Computing trees related to some pro-p-groups of finite width
  • Gauss 2020.10-02 (16/10/2020) by S. Görtzen, M. Barakat, S. Gutsche.
    Extended Gauss functionality for GAP
  • GaussForHomalg 2020.10-02 (16/10/2020) by S. Görtzen, M. Barakat.
    Gauss functionality for the homalg project
  • GeneralizedMorphismsForCAP 2020.10-01 (19/10/2020) by S. Gutsche, S. Posur.
    Implementations of generalized morphisms for the CAP project
  • genss 1.6.6 (18/07/2018) by M. Neunhöffer, F. Noeske, M. Horn.
    Generic Schreier-Sims
  • GradedModules 2020.10-02 (16/10/2020) by M. Barakat, S. Gutsche, S. Jambor, M. Lange-Hegermann, A. Lorenz, O. Motsak.
    A homalg based package for the Abelian category of finitely presented graded modules over computable graded rings
  • GradedRingForHomalg 2020.10-02 (16/10/2020) by M. Barakat, S. Gutsche, M. Kirschmer, S. Jambor, M. Lange-Hegermann, D. Robertz.
    Endow Commutative Rings with an Abelian Grading
  • Guarana 0.96.2 (15/11/2018) by B. Assmann, J. McDermott, The GAP Team.
    Applications of Lie methods for computations with infinite polycyclic groups
  • HAPcryst 0.1.13 (10/02/2020) by M. Roeder, The GAP Team.
    A HAP extension for crystallographic groups
  • hecke 1.5.3 (01/09/2019) by D. Traytel, The GAP Team.
    Calculating decomposition matrices of Hecke algebras
  • HeLP 3.5 (20/12/2019) by A. Bächle, L. Margolis.
    Hertweck-Luthar-Passi method.
  • homalg 2020.10-02 (16/10/2020) by M. Barakat, S. Gutsche, M. Lange-Hegermann.
    A homological algebra meta-package for computable Abelian categories
  • HomalgToCAS 2020.10-02 (16/10/2020) by T. Bächler, M. Barakat, T. Breuer, S. Görtzen, S. Gutsche, F. Lübeck, V. Wagh.
    A window to the outer world
  • images 1.3.0 (21/03/2019) by C. Jefferson, M. Pfeiffer, R. Waldecker, E. Jonauskyte.
    Minimal and Canonical images
  • IntPic 0.2.4 (23/08/2019) by M. Delgado.
    A package for drawing integers
  • IO 4.7.0 (17/07/2019) by M. Neunhöffer, M. Horn.
    Bindings for low level C library I/O routines
  • IO_ForHomalg 2020.10-02 (16/10/2020) by T. Bächler, M. Barakat, S. Gutsche, M. Neunhöffer, D. Robertz.
    IO capabilities for the homalg project
  • json 2.0.2 (03/04/2020) by C. Jefferson.
    Reading and Writing JSON
  • JupyterKernel 1.3 (23/02/2019) by M. Pfeiffer, M. Martins, The GAP Team.
    Jupyter kernel written in GAP
  • JupyterViz 1.5.1 (28/03/2019) by N. Carter.
    Visualization Tools for Jupyter and the GAP REPL
  • LinearAlgebraForCAP 2020.10-01 (19/10/2020) by S. Gutsche, S. Posur.
    Category of Matrices over a Field for CAP
  • LocalizeRingForHomalg 2020.10-02 (16/10/2020) by M. Barakat, M. Lange-Hegermann, V. Wagh.
    A Package for Localization of Polynomial Rings
  • MajoranaAlgebras 1.4 (06/12/2018) by M. Pfeiffer, M. Whybrow.
    A package for constructing Majorana algebras and representations
  • matgrp 0.64 (25/08/2020) by A. Hulpke.
    Matric Group Interface Routines
  • MatricesForHomalg 2020.10-04 (24/10/2020) by M. Barakat, M. Lange-Hegermann, M. Leuner, V. Wagh.
    Matrices for the homalg project
  • ModulePresentationsForCAP 2020.10-01 (19/10/2020) by S. Gutsche, S. Posur.
    Category R-pres for CAP
  • Modules 2020.10-02 (16/10/2020) by T. Bächler, M. Barakat, F. Diebold, S. Gutsche, M. Lange-Hegermann, V. Wagh.
    A homalg based package for the Abelian category of finitely presented modules over computable rings
  • MonoidalCategories 2020.10-01 (19/10/2020) by M. Barakat, S. Gutsche, S. Posur.
    Monoidal and monoidal (co)closed categories
  • NConvex 2020.11-04 (04/11/2020) by K. Saleh, S. Gutsche.
    A Gap package to perform polyhedral computations
  • NormalizInterface 1.1.0 (23/08/2019) by S. Gutsche, M. Horn, C. Söger.
    GAP wrapper for Normaliz
  • orb 4.8.3 (03/09/2019) by J. Mueller, M. Neunhöffer, F. Noeske, M. Horn.
    Methods to enumerate orbits
  • PackageManager 1.1 (14/10/2020) by M. Torpey.
    Easily download and install GAP packages
  • PatternClass 2.4.2 (24/07/2018) by R. Hoffmann, S. Linton, M. Albert.
    A permutation pattern class package
  • polymaking 0.8.2 (23/02/2019) by M. Roeder, The GAP Team.
    Interfacing the geometry software polymake
  • profiling 2.3 (03/04/2020) by C. Jefferson.
    Line by line profiling and code coverage for GAP
  • QPA 1.31 (09/09/2020) by E. Green, O. Solberg.
    Quivers and Path Algebras
  • recog 1.3.2 (15/04/2018) by M. Neunhöffer, Á. Seress, N. Ankaralioglu, P. Brooksbank, F. Celler, S. Howe, M. Law, S. Linton, G. Malle, A. Niemeyer, E. O'Brien, C. M. Roney-Dougal, M. Horn.
    A collection of group recognition methods
  • RepnDecomp 1.1.0 (15/02/2020) by K. Hymabaccus, D. Pasechnik.
    Decompose representations of finite groups into irreducibles
  • ResClasses 4.7.2 (24/03/2019) by S. Kohl.
    Set-Theoretic Computations with Residue Classes
  • RingsForHomalg 2020.11-01 (27/11/2020) by M. Barakat, S. Görtzen, M. Kirschmer, M. Lange-Hegermann, O. Motsak, M. Neunhöffer, D. Robertz, H. Schönemann, A. Steenpaß, V. Wagh.
    Dictionaries of external rings
  • SCO 2020.10-02 (16/10/2020) by S. Görtzen, M. Barakat.
    SCO - Simplicial Cohomology of Orbifolds
  • Semigroups 3.4.0 (28/08/2020) by J. Mitchell, S. Burrell, M. Delgado, J. East, A. Egri-Nagy, L. Elliott, N. Ham, M. Horn, C. Jefferson, J. Jonusas, D. V. Pasechnik, M. Pfeiffer, C. Russell, B. Steinberg, F. Smith, J. Smith, M. Torpey, M. Whyte, W. Wilson.
    A package for semigroups and monoids
  • SgpViz 0.999.4 (29/10/2018) by M. Delgado, J. Morais.
    A package for semigroup visualization
  • singular 2020.12.18 (18/12/2020) by M. Costantini, W. A. de Graaf, The GAP Team.
    A GAP interface to Singular
  • Smallsemi 0.6.12 (16/08/2019) by A. Distler, J. Mitchell.
    A library of small semigroups
  • SpinSym 1.5.2 (01/10/2019) by L. Maas, The GAP Team.
    Brauer tables of spin-symmetric groups
  • Thelma 1.02 (06/02/2019) by V. Bovdi, V. Laver.
    A package on threshold elements
  • ToolsForHomalg 2020.10-03 (22/10/2020) by M. Barakat, S. Gutsche, M. Lange-Hegermann.
    Special methods and knowledge propagation tools
  • ToricVarieties 2021.01.12 (12/01/2021) by S. Gutsche, M. Bies.
    A package to handle toric varieties
  • Unipot 1.4 (09/04/2018) by S. Haller, M. Horn.
    Computing with elements of unipotent subgroups of Chevalley groups
  • utils 0.69 (29/11/2019) by S. Gutsche, M. Horn, A. Hulpke, S. Kohl, F. Lübeck, C. Wensley.
    Utility functions in GAP
  • uuid 0.6 (22/09/2018) by M. Pfeiffer.
    RFC 4122 UUIDs
  • walrus 0.999 (19/12/2019) by M. Pfeiffer.
    A new approach to proving hyperbolicity
  • XModAlg 1.18 (17/11/2020) by Z. Arvasi, A. Odabas.
    Crossed Modules and Cat1-Algebras
  • YangBaxter 0.9.0 (08/11/2019) by L. Vendramin, A. Konovalov.
    Combinatorial Solutions for the Yang-Baxter equation
  • ZeroMQInterface 0.12 (01/11/2019) by M. Pfeiffer, R. Behrends, The GAP Team.
    ZeroMQ bindings for GAP

No longer redistributed with GAP or renamed:

  • Carat - this package has been renamed to CaratInterface.
  • Citrus - this package has been renamed to Semigroups.
  • Convex - this package has been superseded by NConvex.
  • Gpd - this package has been renamed to groupoids.
  • HAPprime - part of the code has been incorporated into the HAP package. Its source code repository, containing the code of the last distributed version, can still be found on GitHub here.
  • if - this package has been withdrawn; a better functionality is now included in the newer package SCSCP.
  • LAG - the functionality of this package is now included in the newer package LAGUNA.
  • linboxing - this package has been unusable (it does not compile) for several years preceding GAP 4.10 release, and is unmaintained. It was therefore dropped from the GAP package distribution. If anybody is willing to take over and fix the package, the latest sources are available here.
  • MONOID - the functionality of this package is now included in the newer package Semigroups.
  • NQL - this package has been withdrawn by the author, and later has been superseded by the package lpres.
  • ParGAP is no longer redistributed with GAP because it no longer can be compiled with GAP 4.9 (see this announcement). Its source code repository, containing the code of the last distributed version, plus some first fixes needed for compatibility for GAP 4.9, can still be found on GitHub here. If somebody is interested in repairing this package and taking over its maintenance, so that it can be distributed again, please contact the GAP team.
  • PolymakeInterface - this package has been withdrawn.
  • QaoS is no longer redistributed with GAP because the servers it crucially relies on for its functionality have been permanently retired (see this announcement). Its source code repository, containing the code of the last distributed version, can still be found on GitHub here. If somebody is interested in repairing this package and taking over its maintenance, so that it can be distributed again, please contact the GAP team.
  • recogbase - this package has been merged into the recog package, and therefore is no longer distributed with GAP.