---
title: "Magma V2.15-7 Patch Notes"
canonical: "https://docs.magma-maths.org/patchnotes/2.15-7.html"
source: "https://docs.magma-maths.org/patchnotes/2.15-7.md"
---

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# Magma V2.15-7 Patch Notes

## Aggregates

- Associative arrays have been fixed so that there is no longer a crash when they are incorrectly used as a universe.

## Function Fields

- Two problems with product representations have been fixed. The second one was introduced in the last patch release disabling product representations after a certain residue field image computation.

## Group Algebras

- A crash when asking for generators of a group algebra not in vector representation has been fixed. Generators for groups algebras are only available for the vector representation. A similar restriction applies to quotients of a group algebra, and the corresponding crash has also been fixed. Bugs reported by Markus Grassl.

## Group Theory

- Two copies of one conjugacy class (rather than two distinct classes) of maximal subgroups were being returned for the simple groups $PSL(3, 2^t)$ for $t\ge 3$. Reported by Joe Bohanon.

## Lattices

- A crash in [`BasisReduction`](../LatticesQuadraticForms/Lattices/reduction.md#function-lat-basisreduction) has been fixed.

## Lie Algebras

- A crash in subalgebra creation for Lie algebras with the partial representation has been fixed.  Reported by D. Roozemond.