2026.4.0

What's Changed

• DO NOT SQUASH Merge release by @connorjward in #191
• RestrictedElement: support restriction_domain=ridge by @pbrubeck in #193
• Support ufl_element.quad_scheme by @pbrubeck in #186
• Cleanup KMV quadratures by @pbrubeck in #194
• COFFEE: optimise find_optimal_atomics by @pbrubeck in #171
• Adapt to UFL API changing methods to properties by @connorjward in #192
• Ksagiyam/merge release into main by @ksagiyam in #196
• Ksagiyam/introduce mixed map mixed cell by @ksagiyam in #183
• BUG: fix KMV embedded degree by @pbrubeck in #199
• overload BrokenElement.new to nest Broken-ness below Vector/Tensor/Mixed-ness by @JHopeCollins in #201
• RestrictedElement: nest inside MixedElement by @pbrubeck in #202
• DO NOT SQUASH: merge release to main by @pbrubeck in #204
• Fix quadrature docstrings by @pbrubeck in #205
• QuadratureElement: construct directly from a QuadratureRule by @pbrubeck in #187
• Walkington C1 macroelement by @pbrubeck in #155
• Move MacroPolynomialSet to subclass to prevent infinite recursion errors by @pbrubeck in #206
• Wu-Xu H3 non-conforming triangle by @pbrubeck in #208
• Refactor functionals by @pbrubeck in #209
• DualSet: BLAS3 optimization for IntegralMomentOfDerivative by @pbrubeck in #210
• C2 (macro)elements by @pbrubeck in #212
• Merge release into main (DO NOT SQUASH) by @pbrubeck in #213
• Use constant moments for BernardiRaugel and GuzmanNeilan by @pbrubeck in #203
• Introduce has_pointwise_dual_basis by @pbrubeck in #200
• Merge release to main (DO NOT SQUASH) by @pbrubeck in #214
• QuadratureElement: fix dimension check by @pbrubeck in #215
• PhysicallyMappedElement: dual_transformation for more generic elements by @pbrubeck in #217
• GEM: Simplify Indexed tensors by @pbrubeck in #131
• Fix extract_subelement_component by @pbrubeck in #122
• Unimplemented DualSet for BDMC by @pbrubeck in #218
• High order BDFM by @pbrubeck in #181
• Merge release to main [DO NOT SQUASH] by @pbrubeck in #219
• Optimise find_optimal_atomics by @pbrubeck in #221
• Optimise atomics for sum factorisation by @connorjward in #223
• Fix docstrings by @pbrubeck in #225
• MTW tetrahedron by @pbrubeck in #220
• Restrict PhysicallyMappedElement by @pbrubeck in #226
• GEM: Optimise index replacement by @pbrubeck in #227
• Clean up WuXuH3NCSpace by @pbrubeck in #228
• NodalEnrichment with mismatching ExpansionSets by @pbrubeck in #229
• Gem tabulation by @pbrubeck in #172
• Handle Real elements analogously to DG for tensor product cells by @connorjward in #233
• Revert "Handle Real elements analogously to DG for tensor product cells" by @connorjward in #236
• Handle Real elements analogously to DG for tensor product cells by @connorjward in #237
• Various repo cleanups by @connorjward in #234
• DO NOT SQUASH merge main by @connorjward in #241

New Contributors

• @JHopeCollins made their first contribution in #201

Full Changelog: 2025.10.1...2026.4.0

FIAT: the Finite Element Automated Tabulator

This release is specifically created to document the version of fiat used in a particular set of experiments using Firedrake. Please do not cite this as a general source for Firedrake or any of its dependencies. Instead, refer to https://www.firedrakeproject.org/citing.html

FIAT: the Finite Element Automated Tabulator

This release is specifically created to document the version of fiat used in a particular set of experiments using Firedrake. Please do not cite this as a general source for Firedrake or any of its dependencies. Instead, refer to https://www.firedrakeproject.org/citing.html

2025.10.1

What's Changed

• gem: disable making temporaries for VariableIndexs by @ksagiyam in #195
• Lumped mass quadrature scheme by @pbrubeck in #197

Full Changelog: 2025.10.0...2025.10.1

FIAT: the Finite Element Automated Tabulator

This release is specifically created to document the version of fiat used in a particular set of experiments using Firedrake. Please do not cite this as a general source for Firedrake or any of its dependencies. Instead, refer to https://www.firedrakeproject.org/citing.html

FIAT: the Finite Element Automated Tabulator

This release is specifically created to document the version of fiat used in a particular set of experiments using Firedrake. Please do not cite this as a general source for Firedrake or any of its dependencies. Instead, refer to https://www.firedrakeproject.org/citing.html

FIAT: the Finite Element Automated Tabulator

This release is specifically created to document the version of fiat used in a particular set of experiments using Firedrake. Please do not cite this as a general source for Firedrake or any of its dependencies. Instead, refer to https://www.firedrakeproject.org/citing.html

2025.10.0

What's Changed

• tpe: rename sub_elements tensor_product_components by @ksagiyam in #148
• Proposal: use upstream UFL instead of the Firedrake fork by @connorjward in #147
• DO NOT SQUASH Merge release by @connorjward in #160
• Remove functional.index_iterator by @pbrubeck in #157
• Lazy basis_tabulation by @pbrubeck in #162
• GEM: improve style by @pbrubeck in #164
• TensorProductCell: fix is_macrocell() method by @ksagiyam in #170
• DO NOT SQUASH merge release by @pbrubeck in #173
• DO NOT SQUASH merge release into main by @pbrubeck in #178
• Spectral KMV by @pbrubeck in #177
• Unimplemented DualSet for TrimmedSerendipity by @pbrubeck in #182
• Use petsctools for citations by @connorjward in #180
• DO NOT SQUASH Merge main by @connorjward in #188
• Tidy up workflows by @connorjward in #189

Full Changelog: 2025.4.2...2025.10.0

2025.4.2

What's Changed

• GEM: Fix Delta performance regression by @pbrubeck in #166
• GEM: factorise Delta by @pbrubeck in #168
• Replace all refs to master branch with main by @connorjward in #161
• Support Bernstein on tensor product cells by @pbrubeck in #165
• Remove entity permutations for non-Lagrange elements by @pbrubeck in #156
• Bump release version by @pbrubeck in #179

Full Changelog: 2025.4.1...2025.4.2

2025.4.1

What's Changed

• Bubble Lagrange variants and multiple facet HDivTrace tabulations by @pbrubeck in #150
• GEM: Fix empty Product by @pbrubeck in #158
• Morley Tetrahedron by @pbrubeck in #154
• Enable macroelement variants for most elements by @pbrubeck in #152
• Bump FIAT version by @pbrubeck in #159

Full Changelog: 2025.4.0...2025.4.1