Changelog.md

Changelog

v0.8.0

• Replace all ufl.FiniteElement and ufl.VectorElement with the appropriate basix.ufl.element
• Replace dolfinx.fem.FunctionSpace with dolfinx.fem.functionspace

v0.7.2

• Change pyvista backend to html, using Pyvista main branch
• Using DOLFINx v0.7.2 https://github.com/FEniCS/dolfinx/releases/tag/v0.7.2 as base

v0.7.1

• No API changes, release due to various bug-fixes from the 0.7.0 release, see: https://github.com/FEniCS/dolfinx/releases/tag/v0.7.1 for more information

v0.7.0

• Renamed dolfinx.graph.create_adjacencylist to dolfinx.graph.adjacencylist
• Renamed dolfinx.plot.create_vtk_mesh to dolfinx.plot.vtk_mesh
• dolfinx.geometry.BoundingBoxTree has been changed to dolfinx.geometry.bb_tree
• create_mesh with Meshio has been modified. Note that you now need to pass dtype np.int32 to the cell_data.
• Update dolfinx petsc API. Now one needs to explicitly import dolfinx.fem.petsc and dolfinx.fem.nls, as PETSc is no longer a strict requirement. Replace petsc4py.PETSc.ScalarType with dolfinx.default_scalar_type in demos where we do not use petsc4py explicitly.

v0.6.0

• Remove ipygany and pythreejs as plotting backends. Using panel.
• Add gif-output to [chapter2/diffusion_code] and [chapter2/hyperelasticity].
• Replace dolfinx.fem.Function.geometric_dimension with len(dolfinx.fem.Function)
• Improve [chapter2/ns_code2] to have better splitting scheme and density.
• Improve mesh quality in [chapter3/em].
• jit_params and form_compiler_params renamed to *_options.

v0.5.0

• Using new GMSH interface in DOLFINx (dolfinx.io.gmshio) in all demos using GMSH
• Added a section on custom Newton-solvers, see [chapter4/newton-solver].
• Various minor DOLFINx API updates. dolfinx.mesh.compute_boundary_facets -> dolfinx.mesh.exterior_facet_indices with slightly different functionality. Use dolfinx.mesh.MeshTagsMetaClass.find instead of mt.indices[mt.values==value].
• Various numpy updates, use np.full_like.
• Change all notebooks to use jupytext to automatically sync .ipynb with .py files.
• Add example of how to use DOLFINx in complex mode, see [chapter1/complex_mode].

0.4.1

• No changes

0.4.0 (05.02.2021)

• All pyvista plotting has been rewritten to use ipygany and pythreejs as well as using a cleaner interface.
• dolfinx.plot.create_vtk_topology has been renamed to dolfinx.plot.create_vtk_mesh and can now be directly used as input to pyvista.UnstructuredGrid.
• dolfinx.fem.Function.compute_point_values has been deprecated. Interpolation into a CG-1 is now the way of getting vertex values.
• API updates wrt. DOLFINx. Form->form, DirichletBC->dirichletbc.
• Updates on error computations in Error control: Computing convergence rates.
• Added tutorial on interpolation of ufl.Expression in Deflection of a membrane.
• Added tutorial on how to apply constant-valued Dirichlet conditions in Deflection of a membrane.
• Various API changes relating to the import structure of DOLFINx

0.3.0 (09.09.2021)

• Major improvements in Form compiler parameters, using pandas and seaborn for visualization of speed-ups gained using form compiler parameters.
• API change: dolfinx.cpp.la.scatter_forward(u.x) -> u.x.scatter_forward
• Various plotting updates due to new version of pyvista.
• Updating of the Hyperelasticity demo, now using DOLFINx wrappers to create the non-linear problem
• Internal updates due to bumping of jupyter-book versions
• Various typos and capitalizations fixed by @mscroggs in PR 35.

0.1.0 (11.05.2021)

• First tagged release of DOLFINx Tutorial, compatible with DOLFINx 0.1.0.