---
title: "Magma V2.15-3 Patch Notes"
canonical: "https://docs.magma-maths.org/patchnotes/2.15-3.html"
source: "https://docs.magma-maths.org/patchnotes/2.15-3.md"
---

<a id="magma-v2-15-3-patch-notes"></a>
# Magma V2.15-3 Patch Notes

## Algebraic Function Fields

- Maximal orders of Kummer extensions have been further sped up by avoiding creation of the intermediate p-maximal orders.

## Algebraic Number Fields

- Maximal orders of Kummer extensions have been further sped up by avoiding creation of the intermediate p-maximal orders.

## Algebras

- The `QuotientModule` and `MaximumTime` parameters have been switched over to use the MPFR reals.

## Geometry

- Another local solubility glitch for [`IsotropicSubspace`](../LatticesQuadraticForms/QuadraticForms/isotropic.md#function-isotropicsubspace-rngmpolelt) has been fixed. A different bug (failed minimization) that largely affected higher even dimensional cases (particularly dimension 6) has also been fixed. These bugs were noted by T. A. Fisher.

## Hilbert Modular Forms

- Several serious bugs, which came to light during testing, have been fixed. (This affects a large range of cases.)

## Lattices

- Various functions involving `pSignatures` now return something modulo 8 (still as an integer), as this is what is rationally invariant.

## Polynomial Rings

- A problem with matrices over boolean polynomial rings has been fixed. Reported by M. Grassl.

## Rational Function Fields

- The function `Valuation` applied to a rational function at a place is now possible after a check on the input has been fixed.

## Real and Complex Fields

- [`Dilog`](../BasicRings/RealAndComplexFields/transcendental.md#function-dilog-fldcomelt) and the [`Polylog`](../BasicRings/RealAndComplexFields/transcendental.md#function-polylog-rngintelt-rngserelt) functions are now available again for complex numbers.

## System

- The printing of Lists has been slightly improved.
- Assigning to attributes of attributes works in more cases now.