Issues

• Quadrature degree over-estimated for mixed-element form components (stokes_th_tet: 5-point rule instead of the minimal 4-point rule)

  FEniCS/ffcx#866 · Filter by author garth-wells opened on Aug 19, 2026
  2

• Factorization graph ~2x larger than a reference compiler's for elasticity_p1 (non-AD form) -- likely broader than the HyperElasticity case

  FEniCS/ffcx#864 · Filter by author garth-wells opened on Aug 19, 2026
  8

• MSVC complains about POSIX calls to special math functions e.g. j0

  FEniCS/ffcx#839 · Filter by author jhale opened on Jun 10, 2026

• Simplify if statement in element tables

  housekeeping
  FEniCS/ffcx#837 · Filter by author mscroggs opened on Jun 1, 2026 · 0.12.0

• Support max quadrature as metadata.

  FEniCS/ffcx#832 · Filter by author jorgensd opened on May 14, 2026

• Interpolation expression support

  enhancementgenerated-codeproposal
  FEniCS/ffcx#827 · Filter by author schnellerhase opened on Mar 24, 2026
  1

• Sporadical CI failures in test_numba.py

  Bug

  FEniCS/ffcx#822 · Filter by author schnellerhase opened on Mar 2, 2026
  1

  

• test_ds_prism fails on s390x

  FEniCS/ffcx#815 · Filter by author drew-parsons opened on Dec 23, 2025
  3

• Extend mypy checking to demos and tests

  good first issuetype-hints
  FEniCS/ffcx#802 · Filter by author schnellerhase opened on Nov 27, 2025 · 0.12.0
  

• Roll out fenicsx-refs.yml to FFCx

  FEniCS/ffcx#792 · Filter by author jhale opened on Oct 20, 2025
  1

  

• Improve support for custom integration kernels

  FEniCS/ffcx#750 · Filter by author sclaus2 opened on Feb 21, 2025

• Fix ffcx to create dS integrals for cells with multiple facet types (pyramid, prism etc.)

  FEniCS/ffcx#740 · Filter by author mscroggs opened on Dec 20, 2024
  

• Add a test that tests vertex quadrature

  testing
  FEniCS/ffcx#738 · Filter by author mscroggs opened on Dec 20, 2024

• domain_dof_access with multiple domains

  bug
  FEniCS/ffcx#734 · Filter by author mscroggs opened on Dec 5, 2024
  

• Casting warnings on Windows

  FEniCS/ffcx#715 · Filter by author jhale opened on Sep 16, 2024
  

• Unit stride access of blocked Coefficients

  generated-codeperformance
  FEniCS/ffcx#713 · Filter by author michalhabera opened on Sep 11, 2024
  3

• Add minimal CMake + C example

  FEniCS/ffcx#711 · Filter by author jhale opened on Jul 11, 2024

• Optimize float-products with LiteralFloat(0.)

  FEniCS/ffcx#702 · Filter by author jorgensd opened on May 29, 2024

• Facet and Cell averages

  FEniCS/ffcx#693 · Filter by author jorgensd opened on May 3, 2024

• Remove ufcx.h

  proposal
  FEniCS/ffcx#687 · Filter by author garth-wells opened on Apr 26, 2024
  3

• Missing bessel functions

  bug
  FEniCS/ffcx#673 · Filter by author jorgensd opened on Feb 27, 2024
  8

• Quadrature-points symbol not stored as table

  FEniCS/ffcx#650 · Filter by author jorgensd opened on Jan 12, 2024
  1

• More expressive filenames for graph-visualization

  FEniCS/ffcx#633 · Filter by author jorgensd opened on Nov 5, 2023
  1

• Store coefficient values at quadrature points for kernels

  FEniCS/ffcx#565 · Filter by author IgorBaratta opened on Apr 6, 2023

• Support different dof orderings on a cell

  enhancementproposal
  FEniCS/ffcx#557 · Filter by author garth-wells opened on Feb 22, 2023 · 0.12.0
  1