Release 2026.06.09

Upgrade instructions

From #7138 (Allow injecting gravitational wave through outer boundary):

For systems that use the ConstraintPreservingBjorhus boundary conditions, the wave profile has to be added to the intput file, e.g:

    OuterBoundaryCondition:
      ConstraintPreservingBjorhus:
        Type: ConstraintPreservingPhysical
        IncomingWaveProfile: None

From #7177 (Rename StepChoosers tags to LtsStepChoosers):

The StepChoosers option in the Evolution section of the input file for evolutions with local time stepping has been renamed to LtsStepChoosers.

From #7135 (Create PunctureField class):

When using the CurvedScalarWave worldtube executable, the PunctureField type now needs to be specified

Merged pull-requests (106)

General changes (99):

• ZernikeB2 interpolants (#7140)
• Run make py-docs in parallel in CI (#7160)
• Fix compiler error on urania (#7162)
• Move serialize_and_deserialize into src (#7158)
• Add a Claude/Codex skills for working on issues & fixing PR comments (#7157)
• Add Claude review skill (#7154)
• Allow injecting gravitational wave through outer boundary (#7138)
• Add function to determine parity for use with cartoon method (#7148)
• Add coding agent as co-author to review checklist (#7168)
• Switch Burgers executable to LTS (#7169)
• AH rewrite: Remove Interpolator (#6805)
• Store boundary data messages in a small_vector (#7161)
• Fix compilation of EvolveGhValenciaDivCleanBns with FukaInitialData (#7170)
• Moved TaggedTuple to DataStructures (#7166)
• Add support for ZernikeB2 logical derivatives (#7139)
• Fix journal macro expansion in docs (#7167)
• Add L1 norm and L1 integral norm to ObserveNorms (#7150)
• Rework connectivity and XDMF to support spherical shell connectivity, add Block&Element ID (#7136)
• Remove test_copy_semantics extra construction Args (#7174)
• Stop partially processing boundary message times (#7176)
• Remove non-subcell limiting from executables (#7175)
• Add ZernikeB1 partial derivatives (#7171)
• Add cartoon cartesian flux divergence (#7165)
• Rename StepChoosers tags to LtsStepChoosers (#7177)
• Add post-tool hook for formatting and use Rule for C++ and CMake file edits. (#7172)
• Claude skill that can fetch a GitHub action job output and fix the issue. Use it to fix develop (#7183)
• Update IrregularInterpolant to handle FD + Cartoon (#7180)
• Handle cartoon basis with FD filtering (#7181)
• Minor fixes to Claude Code skills and hooks (#7189)
• Use -Og in debug (#7182)
• Add translation to transition to ringdown script (#6808)
• Update inertial coord tag for observing norms with cartoon basis (#7187)
• Find different git-clang-format versions in formatting hook (#7194)
• Update blaze & catch2 in container (#7197)
• Soft cancel jobs at 5:45 so that the ccache can be saved (#7196)
• Clarify random failure skill and have review look for potentially problematic floating behavior (#7192)
• Process earliest needed message instead of latest (#7201)
• Update container and build ARM container natively inCI (#7199)
• Fix floating-point trouble in Wedge shape map (#7191)
• Update actions versions and use x86-64 arch with Kokkos (#7210)
• Work around coverxygen bug (#7209)
• Increase tolerance in np.einsum test (#7193)
• Add publisher to multigrid books (#7204)
• Update remaining GitHub actions to newest versions (#7212)
• Add hessian to SecondPartialDerivatives (#7072)
• Add perturbative gravitational-wave GR analytic solution for testing wave extraction (#7146)
• Update another action version (#7215)
• Add time dependence to RotatedBricks/Rectangles (#7218)
• Disable -Og by default (#7216)
• Add single tensor derivative compute item for Cartoon (#7188)
• Remove/hide some ApplyBoundaryCorrections template parameters (#7217)
• Perform SWSH transforms of all required weights (#7220)
• Add mask to secant_interpolate in TOMS748 (#7223)
• Call CAPTURE_FOR_ERROR from MAKE_GENERATOR (#7224)
• Fix SWSH filtering of only low modes (#7222)
• Fix bug in Tags::DerivTensorCompute (#7231)
• Create exponential filter function for ZernikeB2 (#7195)
• More descriptive error message for BBH headon (#7226)
• Add equation of state calls for specific entropy and compute tag for observing it (#7032)
• Add distributions and singularity positions to rectilinear domains (#7123)
• Fix DataBox bugs related to Tag::base aliases (#7228)
• Create PunctureField class (#7135)
• Add name() function to evolution systems (#7236)
• Add GridToInertialJacobian compute tag (#7237)
• Fix continue with ringdown (#6984)
• Add ZernikeB1 topology (#7206)
• Update Evolution/DgSubcell to handle cartoon bases (#7179)
• Add vtu slicing to self-force executables (#7122)
• Add Filters::Filter base class and Hypercube implementation (#7238)
• Fix check for observation value in GenerateTetrahedralConnectivity (#7252)
• Fix environment with old version of brigand (#7250)
• Move restarting phase logic to Main (#7248)
• Add ZernikeB1 filtering (only for cartoon bases) (#7211)
• Modify GH to allow Cartoon bases (#7251)
• Update div mesh velocity for use with cartoon (#7247)
• FD cartoon partial derivatives (#6871)
• Skip adding ID attributes with tetrahedral connectivity (#7253)
• Add function to return array of parity (for cartoon evolution) (#7243)
• Add auto ringdown excision radius to transition script (#6809)
• Add ZernikeB1 filter lowest modes (#7244)
• Have exp filter weight Fourier m modes equally (#7245)
• Create Cartoon-type BC (#7246)
• Bundle TensorYlm filter matrices into FilterMatrixHolder (#7239)
• Fix Time Precedes Earliest Bug in Ringdown (#7214)
• Add ZernikeB1 interpolation matrix (#7232)
• Add source terms for ValenciaDivClean with Cartoon (#7178)
• Add new equations of state to template classes. (#7234)
• Update CartoonSphere2D creator to use ZernikeB1 and internal BCs (#7260)
• Enable evolutions using non-conforming Blocks. (#7202)
• Update PerssonTCI to work with ZernikeB1 (#7261)
• Add SphericalShell filter class (#7256)
• Add spectral filter tag (#7259)
• Add SpectralFilters initialization mutator (#7263)
• Add None spectral filter (#7258)
• Disable Translation map in worldtube input file (#7276)
• Add TensorYlm filter for GHValenciaDivClean (#7277)
• Add TensorYlm explicit instantiations for systems (#7279)
• Fix HDF5 locking problems (#7287)
• Update Developer metadata (#7280)

Documentation (1):

• Update hpcprof command in developer guides (#7163)

Bugfixes (6):

• Fix dimension counting for cartoon in writing to files (#7186)
• Relax Pontryagin scalar random-test tolerance (#7184)
• Harden Affine against degenerate intervals (#7207)
• Fix CylindricalBinaryCompactObject bugs in grid anchors and time dependent maps (#7225)
• Fix warnings stemming from namespace and included files in hydro (#7235)
• Fix bug from deriving 3D EoS from initial data in GrmhdEquationOfState. (#7233)

Contributors (16): @michaeldmurphy1, @nilsdeppe, @guilara, @nikwit, @wthrowe, @macedo22, @knelli2, @iago-mendes, @geoffrey4444, @AlexCarpenter46, @hen-w, @kidder, @jyoo1042, @JosePineda684, @ncorsobh, @NamiNishimura73