---
title: "Magma V2.19-2 Patch Notes"
canonical: "https://docs.magma-maths.org/patchnotes/2.19-2.html"
source: "https://docs.magma-maths.org/patchnotes/2.19-2.md"
---

<a id="magma-v2-19-2-patch-notes"></a>
# Magma V2.19-2 Patch Notes

## ClassGroup

- A bug has been fixed which occasionally caused `ClassGroup` to not terminate.

## Groups

- A crash using `Subgroups` to find the normal subgroups of a pc-group has been fixed. Bug reported by Nils Bruin.
- A crash in `HasComplement` for type `GrpAb` has been fixed, by installing a new algorithm from Derek Holt. Bug reported by Tim Dokchitser.