--- title: "Magma V2.24-7 Patch Notes" canonical: "https://docs.magma-maths.org/patchnotes/2.24-7.html" source: "https://docs.magma-maths.org/patchnotes/2.24-7.md" --- # Magma V2.24-7 Patch Notes ## Aggregates - A bug `ChangeUniverse` for multisets (where the multiplicities were not correct) has been fixed. Reported by S. Tomaskovic-Moore. ## Groebner Bases - A slowdown in Groebner basis computation over number fields (when the coefficients lie in the rational field) has been fixed. Reported by C. Bonnafe. ## Group Theory - The intrinsic [`ClassicalMaximals`](../FiniteGroups/AlmostSimpleGroups/properties-lie-groups.md#function-classicalmaximals-monstgelt-rngintelt-rngintelt) has been corrected to include a C2 maximal subgroup for SL(2,4) which had been omitted. In addition, two superfluous maximal subgroups for [`OmegaPlus(8,2)`](../FiniteGroups/AlmostSimpleGroups/standard.md#function-omegaplus-rngintelt-rngintelt) have been removed. Reported by S. Glasby and fixed by D. Holt. - The names given by [`PrimitiveGroupDescription`](../FiniteGroups/DatabasesOfGroups/primgp-data.md#function-primitivegroupdescription-rngintelt-rngintelt) for primitive group numbers 3, 4, 5 of degree 56 have been changed to agree with the names used in the ATLAS of Finite Simple Groups. Problem reported by M. Zieve. - A crash when finding `LowIndexSubgroups` of a permutation group has been fixed. Bug reported by John Jones. - A bug when computing `IrreducibleModules` has been fixed. A rare error when computing the conjugates of an irreducible module could result in repeated copies of one or more irreducibles being returned. Bug reported by D. Craven. - A bug using the !! operator on elements of a permutation group has been fixed. Bug reported by E. O’Brien. - The output of [`StandardGeneratorsGroupNames`](../FiniteGroups/AlmostSimpleGroups/related.md#function-standardgeneratorsgroupnames) has been altered by removing the string “L2p (for any prime p)”. This gave problems for users who iterated over the set of names. ## Hyperelliptic Curves - A problem with an reducible global lift in a p-adic point counting method has been resolved with `LPolynomial`. Reported by A. Sutherland. ## IO - [`Hash`](../SetsSequencesMappings/Sets/access-modification.md#function-hash-elt) for sockets no longer always returns 13. ## Integers - A slowdown in `Modexp` for integers when the modulus had a certain form has been fixed. Reported by W. Bosma. ## Local Fields - The accuracy of `DefiningPolynomial` taking 2 arguments has been improved when the first argument is a direct extension of the second. Reported by S. Marseglia. - `IsNormal` has been improved for rings with infinite precision. Reported by S. Marseglia. ## Matrices - The function `Cokernel` was incorrectly returning only one result in assignment context; this has been fixed. Reported by U. Derenthal. ## Modules - A missing test for absolutely irreducibility has been added to [`IsRealisableOverSmallerField`](../RepresentationTheory/ModulesOverAnAlgebraAndGroupRepresentations/operation.md#function-isrealisableoversmallerfield-modgrp). Issue reported by D. Craven. ## Quaternion Algebras - A incorrect third return value with `IsConjugate` for orders was fixed. Reported by S. Hughes. ## System - A crash in [`save`](../MagmaLanguage/InputOutput/workspace.md#literal-literal-save-save-filename)/[`restore`](../MagmaLanguage/InputOutput/workspace.md#literal-literal-restore-restore-filename) has been fixed. Reported by K. Yang.