--- title: "Magma V2.10-8 Patch Notes" canonical: "https://docs.magma-maths.org/patchnotes/2.10-8.html" source: "https://docs.magma-maths.org/patchnotes/2.10-8.md" --- # Magma V2.10-8 Patch Notes ## Documentation - The intrinsic function `AdjointRepresentation` of a Lie group was incorrectly labelled `RegularRepresentation` in the Handbook. ## Geometry - `Degree` now should work for maps between curves that have a base scheme supported at a singularity. - `Degree` should now work for compositions of maps between curves. ## Groups - The algorithm implementing the quo-constructor for permutation groups has been subtly changed. This results in a large decrease in the time taken to compute [`SocleQuotient`](../FiniteGroups/PermutationGroups/characteristic-subgroup-normal-structure.md#function-soclequotient-grpperm)`(`[`PGL`](../FiniteGroups/PermutationGroups/linear-group.md#literal-literal-pgl-pgl-arguments)`(4, 41))`, for instance. - A bug in computing the stabilizer of a sequence of points in a permutation group has been fixed. This bug occurred only rarely, depending on unlikely random events. The bug showed up in computing `Subgroups``(`[`PSL`](../FiniteGroups/PermutationGroups/linear-group.md#literal-literal-psl-psl-arguments)`(3,19))`. - The `Verify``(GrpPerm)` command is changed to always perform a verification, even when the BSGS is believed to be complete. - A bug in verification of permutation group BSGS when there are basic orbits of length 1 is fixed. It was found working with a centralizer in McL.2. ## Rings and Fields - A bug reported by Jonathan Hanke in which an attempt to compute $\pi$ to more than a million places in the free model of the real numbers has been fixed. - A p-adic bug in the coercion of a zero of a base field into a ramified extension, reported by Sebastian Pauli, has been fixed. - A reference counting issue in the p-adics which caused instability with large primes, reported by Thomas Womack, has been fixed. - A bug in the determination of 2 element generators for ideals of certain orders (of number fields) has been fixed. - Magma level printing for relative extensions of number fields now works. - A rare problem in non-simple extensions was fixed.