v9.5.2

All download files are mirrored at https://dealii.org/downloads/

This is a minor update to 9.5.1 with the following changes:

• [9.5] Allow compilation with PETSc but without MPI #15788
• [9.5] Fix compiling with PETSc with complex scalar type #15856
• [9.5] base/mpi.h: also instantiate for signed long long int #16540
• [9.5] CMake: fix compilation with bundled boost and modern clang #16541
• [9.5] DofTools: add missing codimension-one instantiation #16539
• [9.5] update changelog for point release #16576

v9.5.1

All download files are mirrored at https://dealii.org/downloads/

This is a minor update to 9.5.0 with the following changes:

• [9.5] Guard NOX support in include/deal.II/numerics/nonlinear.h #15708
• [9.5] bundled/tbb: fix compilation with gcc-13 #15726

deal.II version 9.5.0

All download files are mirrored at https://dealii.org/downloads/

The major changes of this release are:

• Substantial updates and extensions to deal.II's interfaces to other libraries. This includes, in particular, the integration of Kokkos additions and updates to the PETSc and Trilinos interfaces.
• Uniform handling of nonlinear solver packages and a uniform way of defining callbacks used by external libraries.
• Advances in matrix-free infrastructure.
• Advances in non-matching support.
• New features related to linear algebra.
• C++ language modernization.
• Build-system modernization.

What's Changed:

• A full list of changes can be found at https://www.dealii.org/developer/doxygen/deal.II/changes_between_9_4_0_and_9_5_0.html
• A full list of merged pull requests is available at https://github.com/dealii/dealii/commits/v9.5.0

Recurring Contributors:

@adamqc @bangerth @bergbauer @btemuer @dangars @drwells @fdrmrc @gassmoeller @gfcas @GrahamBenHarper @jppelteret @kronbichler @lethe-cfd @lpsaavedra @luca-heltai @luzpaz @marcfehling @masterleinad @mschreter @nabw @nfehn @NiklasWik @olegrog @pcafrica @pengfej @peterrum @richardschu @Rombur @sebproell @simonsticko @singima @tamiko @tcojean @tjhei @zjiaqi2018

New Contributors:

• @and-salmon made their first contribution in #14578
• @a-shahba made their first contribution in #14089
• @bugrahantemur made their first contribution in #14850
• @CodyGirl made their first contribution in #14610
• @c-p-schmidt made their first contribution in #14958
• @Darth-Veidim made their first contribution in #14759
• @emmanuel-ferdman made their first contribution in #15378
• @ivweber made their first contribution in #14657
• @jh66637 made their first contribution in #14059
• @nils-schween made their first contribution in #14885
• @nlsmrg made their first contribution in #14673
• @olegrog made their first contribution in #15083
• @quangx made their first contribution in #14437
• @sloede made their first contribution in #14923
• @stefanozampini made their first contribution in #14676
• @taojinllnl made their first contribution in #15377
• @tcojean made their first contribution in #14413
• @vovannikov made their first contribution in #14533
• @vyushut made their first contribution in #14443

deal.II version 9.4.2

All download files are mirrored at https://dealii.org/downloads/

This is a minor update to 9.4.1 with the following changes:

• a compilation issue with step-70 has been resolved
• CMake: prefer -pthread for posix thread support
• a type mismatch for suitesparse has been fixed that lead to compilation failures on certain platforms
• a number of Microsoft Visual Code compatibility fixes concerning extern declarations

deal.II version 9.4.1

All download files are mirrored at https://dealii.org/downloads/

This is a minor update to 9.4.0 with the following changes:

• cmake: always export compile_commands.json in deal.II and user projects
• doxygen: fix various errors in formulas
• doxygen: fix SymmetricTensor friends
• cmake: fix PETSc version detection
• base: fix some VectorizedArrayTypes for non-default vectorization
• gitignore: ignore clangd files and directories
• change ConsensusAlgorithm deprecations to early deprecated
• step-81: Mention example step in the tutorial lists
• bugfix: use correct tolerance in MappingCartesian check

deal.II version 9.4.0

All download files are mirrored at https://dealii.org/downloads/

The major changes of this release are:

• Three new tutorial programs: 81, 82, 85 demonstrating solving a variety of equations and illustrating functionality in deal.II.
• Advances in simplex- and mixed-mesh support
• Repartitioning of distributed meshes
• Advances in matrix-free infrastructure
• Advances in multigrid infrastructure
• CutFEM support
• Experimental integration of the Computational Geometry Algorithms Library (CGAL)
• Performance improvements in the particle infrastructure
• Improvements to unstructured communication

For more information see

• The preprint at https://www.dealii.org/deal94-preprint.pdf
• The list of changes at https://www.dealii.org/developer/doxygen/deal.II/changes_between_9_3_3_and_9_4_0.html

deal.II Version 9.3.3

All download files are mirrored at https://dealii.org/downloads/

This is a minor update to 9.3.1 with the following changes:

• fixes an update flag issue in VectorTools::point_values()
• uses portable "cmake -E remove" in quick_tests
• fixes compatibility issues with Boost 1.78
• adds support for the new OneAPI api interface for the Intel Threading Building Blocks Library (libtbb)
• fixes a compilation issue with sundials
• updates the shell script p4est-setup.sh

deal.II Version 9.3.2

All download files are mirrored at https://dealii.org/downloads/

This is a minor update to 9.3.1 with the following changes:

• fixes a Sundials/Kinsol issue
• fixes a bug for plain_copy in MGTransferMatrixFree
• fixes a bug for Checkpointing/Restore of large triangulations greater than 4GB
• fixes compatibility issues with Intel 18/19 compiler
• fixes a compilation issue with step-79 and Intel 18 compiler

deal.II Version 9.3.1

All download files are mirrored at https://dealii.org/downloads/

This is a minor update to 9.3.0 with the following changes:

• Configuration and compilation fixes for Intel C++ compilers versions 18.x and 19.x
• Various missing explicit instantitions leading to linker errors on Mac OSX platforms
• MPI configuration fixes
• Fix for a segmentation fault in MappingQGeneric and MappingFE at high optimization levels

deal.II version 9.3.0

All download files are mirrored at https://dealii.org/downloads/

The major changes of this release are:

• Eleven new tutorial programs: Steps 19, 66, 68, 71, 72, 74, 75, 76, 77, 78, 79 demonstrating solving a variety of equations and illustrating functionality in deal.II.
• Experimental support for simplex and mixed meshes
• Improved flexibility of the particle infrastructure
• Support for global-coarsening multigrid algorithms
• Advances in the matrix-free infrastructure

For more information see

• the preprint at https://www.dealii.org/deal93-preprint.pdf
• the list of changes at https://www.dealii.org/developer/doxygen/deal.II/changes_between_9_2_0_and_9_3_0.html