--- title: "Magma V2.11-7 Patch Notes" canonical: "https://docs.magma-maths.org/patchnotes/2.11-7.html" source: "https://docs.magma-maths.org/patchnotes/2.11-7.md" --- # Magma V2.11-7 Patch Notes ## Algebraic Geometry - Some bugs involving non-irreducible/reduced curves have been fixed, in particular in `IsAbsolutelyIrreducible`. - Some bugs involving the empty scheme or empty sets in `(Singular)`[`PointsOverSplittingField`](../AlgebraicGeometry/Schemes/schemes-clusters.md#function-pointsoversplittingfield-clstr) have been fixed. ## Commutative Algebra - Some bugs involving multivariate resultants have been fixed. - A bug normalizing multivariate polynomials over valuation rings has been fixed. - A bug in `MinimalBasis` for inputs containing the zero polynomial has been fixed. (Bug reported by Tony Scholl.) ## Groups - A memory management problem that allowed the orders of ATLAS groups to be corrupted has been fixed. (Bug reported by Markus Grassl.) ## Rings and Fields - It is now possible to take `Exp`, `Log` and `Sqrt` of series over rings which contain the rationals. However, it is no longer possible to apply `Exp` to series over finite fields. - A problem with class groups of imaginary quadratic fields that could result in a crash has been fixed. - A problem with the computation of [`ReducedDiscriminant`](../GlobalFields/NumberFieldsAndOrders/operation.md#function-reduceddiscriminant-rngord) for certain types of number fields that could result in a crash has been fixed. - [`RadicalExtension`](../GlobalFields/NumberFields/creation.md#function-radicalextension-rng-rngintelt-rngelt) of a number field by some non-integral element changed the input. ## System - A bug causing crashes when a memory block greater than 4GB is allocated on 64-bit machines has been fixed. Reported by Bas Braams.