Release date July 22nd, 2016

– distribution –

• support for perl 5.24
• support for gcc 6 (add no-delete-null-pointer-checks)
• workaround for compile error under clang 3.8 / xcode 7.3
• warn when neither bliss nor nauty are enabled
• include nauty interface in minimal tarball

– general –

• several small fixes in handling of subobjects and specializations
• several other minor bugfixes

– fan –

• fix in regularity client (thanks: Sebastian Gutsche)

– matroid –

• fix in dual matroid client

– polytope –

• fix for degenerate hypersimplices (thanks: Charles Wang)
• fix in separating hyperplane client

Release date January 25th, 2016

– distribution –

• fix incompatibility of the Integer type with libnormaliz on 32bit platforms
• fix several other minor compilation issues

– general

• fixes for the TikZ visualization of pointsets:
  1. for drawing PointConfigurations
  2. for drawing lattice points in polytopes
• fixes in handling of nested Ring types

– polytope –

• fixes in TOPCOM interface

Release date January 18th, 2016

– distribution –

• support for libc++
• better support for compiling on MacOS X
• support compilation with C++11 enabled
• fix for gcc-5.x
• fix rare build issues
• support for perl 5.22
• fix build issue with gmp-6.1
• fixes for build-reproducibility

– general –

• significant improvement in rule scheduling
• examples for various properties and clients:
  1. in online help
  2. in HTML documentation
  3. focused on application polytope
• various bugfixes and improvements, especially in documentation and visualization
• fixes and improvements in TAB-completion and F1-help
• merge github pull #2 (fix -Werror=format-security issues)
• fix jReality visualization on various Intel HD Graphics (updated jogl)
• fix jReality startup issues

– common –

• add new coordinate type PuiseuxFraction
• new client for Hermite normal form
• basic numerical linear algebra for double coordinates:
  1. new client for QR-decomposition
  2. new client for singular value decomposition
  3. better solving of linear systems with double coordinates
• improvements for FacetList type
• matrix element access now via →elem(,)

– fan –

• new client planar_net, including visualization and flaps generation
• new clients for dual fans of graph associahedra and manipulating tubings
• new objects SubdivisionOfPoints and -Vectors:

- some refactoring of related properties

– group –

• refactored orbit and group action
• new client for generic orbit computations
• improvements / fixes for linear symmetries computation

– matroid –

• new client for rank of arbitrary sets
• new client for minimum weight bases
• new client for free extensions
• new property transversal_presentation
• new property splitting_flacets
• fixed bug in check_basis_exchange_axiom

– polytope –

• clients for all Johnson solids:
  1. with correct combinatorics
  2. many with exact QuadraticExtension or Rational coordinates
• clients and wrappers for Platonic, Archimedean and Catalan solids
• new client to count triangulations for 2-dim. point configurations (Alvarez,Seidel)
• new client long_and_winding
• new client goldfarb_sit
• new client for lattice width
• new client for decomposing a polytope into direct summands
• LatticePolytope is now a specialization of Polytope instead of a separate type
• renamed several integer programming related clients to fractional_
• fixed some problems with Minkowski sum client
• wythoff client now produces maximally symmetric polytopes whenever possible, i.e. except for G2
• fixes for h^*-vector and Ehrhart polynomial computation

– topaz –

• new client random_discrete_morse, used for improved heuristic sphere recognition
• new header tools for dealing with posets (construction, homomorphisms, etc)
• new properties UNIMODULAR and N_UNIMODULAR for GeomertricSimplicialComplex
• renamed P_sum_triangulation client to sum_triangulation and improved functionality
• new auxiliary clients for supporting sum-triangulations

– tropical –

• Major refactoring:
  1. new object type Cycle, based on polyhedral complex
  2. templated hypersurface client for Min/Max
  3. renamed TropicalPolytope to Cone
• added atint as a bundled extension for tropical intersection theory
• added support for infinite coordinates
• new client covector
• new data type CovectorLattice
• cleanup of obsolete functionality

– interfaces –

• new interface to LP-solver SoPlex 2.2.0
• update lrs to 6.0
• update cdd to 094h
• update nauty to 2.5r9
• update libnormaliz to 3.0.90
• update threejs to 73
• singular:
  1. division of polynomials by ideals
  2. contains monomial test
  3. access to singular polynomials as matrix / vector pair
• sympol:
  1. convex hull computation up to symmetry now supports ppl
• improvements in TOPCOM interface
• normaliz2 file based interface removed