Hello everyone!

This is deal.II newsletter #351.
It automatically reports recently merged features and discussions about the 
deal.II finite element library.


## Below you find a list of recently proposed or merged features:

#19490: Avoid showing deprecated class name in a comment description (proposed 
by kronbichler) https://github.com/dealii/dealii/pull/19490

#19489: Avoid use of deprecated class in performance test (proposed by 
kronbichler) https://github.com/dealii/dealii/pull/19489

#19488: Improve an assertion message (proposed by kronbichler) 
https://github.com/dealii/dealii/pull/19488

#19487: MatrixFree: Simpler strategy in cell categorization in case of many 
categories (proposed by kronbichler) https://github.com/dealii/dealii/pull/19487

#19485: exchange_cell_data(): use std::move and some other cleanups. (proposed 
by drwells; merged) https://github.com/dealii/dealii/pull/19485

#19484: Fix compiling with MUMPS (proposed by masterleinad; merged) 
https://github.com/dealii/dealii/pull/19484

#19482: Make the curl in 2d an actual scalar. (proposed by bangerth; merged) 
https://github.com/dealii/dealii/pull/19482

#19481: Triangulation: remove specializations of n_hexs() etc. (proposed by 
drwells; merged) https://github.com/dealii/dealii/pull/19481

#19480: Triangulation: remove specializations of n_quads() etc. (proposed by 
drwells; merged) https://github.com/dealii/dealii/pull/19480

#19479: In FEPointEvaluator and FEEvaluation, import curl type from central 
location. (proposed by bangerth; merged) 
https://github.com/dealii/dealii/pull/19479

#19478: In FEPointEvaluator and FEEvaluation, import curl type from central 
location. (proposed by bangerth; merged) 
https://github.com/dealii/dealii/pull/19478

#19477: Adjust tests. (proposed by bangerth; merged) 
https://github.com/dealii/dealii/pull/19477

#19476: Fix a test. (proposed by bangerth; merged) 
https://github.com/dealii/dealii/pull/19476

#19475: Portable::MatrixFree: do not duplicate data on device (proposed by 
tjhei; merged) https://github.com/dealii/dealii/pull/19475

#19474: Restrict tests using Epetra (proposed by masterleinad; merged) 
https://github.com/dealii/dealii/pull/19474

#19473: Simplify some `TriaAccessor` orientation functions. (proposed by 
drwells; merged) https://github.com/dealii/dealii/pull/19473

#19472: FESubfaceValues: Fix assertion for DoF cell iterator type (proposed by 
kronbichler) https://github.com/dealii/dealii/pull/19472

#19471: Adjust CGAL tests to changes in ReferenceCell (proposed by kronbichler; 
merged) https://github.com/dealii/dealii/pull/19471

#19470: Avoid including .templates.h files in tests where possible (proposed by 
kronbichler; merged) https://github.com/dealii/dealii/pull/19470

#19469: Fix a typo in a test (proposed by kronbichler; merged) 
https://github.com/dealii/dealii/pull/19469

#19468: Generalize local_size test and fix TpetraWrappers::locally_owned_size() 
(proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/19468

#19467: Also test serialization into binary archives. (proposed by bangerth; 
merged) https://github.com/dealii/dealii/pull/19467

#19466: Adjust gmsh tests to changes in ReferenceCell. (proposed by bangerth; 
merged) https://github.com/dealii/dealii/pull/19466

#19465: FEEvaluation: Initialize all pointers for slow initialization case 
(proposed by kronbichler; merged) https://github.com/dealii/dealii/pull/19465

#19464: Remove inconsistent reinit function path (proposed by gassmoeller) 
https://github.com/dealii/dealii/pull/19464

#19463: Add `TriaLevels::allocate_end()`. (proposed by drwells; merged) 
https://github.com/dealii/dealii/pull/19463

#19462: TriaObjects: use std::size_t. (proposed by drwells; merged) 
https://github.com/dealii/dealii/pull/19462

#19461: Trilinos: add missing declaration (proposed by tjhei; merged) 
https://github.com/dealii/dealii/pull/19461

#19460: Fix compiling with only Tpetra (proposed by masterleinad; merged) 
https://github.com/dealii/dealii/pull/19460

#19458: GridIn::read_exodusii(): use ReferenceCell<dim>. (proposed by drwells; 
merged) https://github.com/dealii/dealii/pull/19458

#19457: TpetraWrappers::SparseMatrix: Fix Tvmult (proposed by masterleinad; 
merged) https://github.com/dealii/dealii/pull/19457

#19456: Maintain compatibility with Kokkos 5.2+ (proposed by dalg24; merged) 
https://github.com/dealii/dealii/pull/19456

#19455: Remove duplicated test output (proposed by gassmoeller; merged) 
https://github.com/dealii/dealii/pull/19455

#19454: Make trilinos vector 'print' output more accurate (proposed by 
gassmoeller; merged) https://github.com/dealii/dealii/pull/19454

#19453: Do not drop ghost elements during Tpetra::Vector::reinit (proposed by 
gassmoeller; merged) https://github.com/dealii/dealii/pull/19453

#19450: TpetraWrappers::Vector: Improve compatibility with 
TrilinosWrappers::Vector interface (proposed by masterleinad; merged) 
https://github.com/dealii/dealii/pull/19450

#19445: Geometric coarsening sequence: Test case for multigrid on a 
non-partitioned tria (proposed by kronbichler; merged) 
https://github.com/dealii/dealii/pull/19445

#19444: allows changing triangulation settings on `copy_triangulation` 
(proposed by vivimie; merged) https://github.com/dealii/dealii/pull/19444

#19437: Add a code of conduct (proposed by masterleinad; merged) 
https://github.com/dealii/dealii/pull/19437

#19423: Make TrilinosWrappers an alias for TpetraWrappers without Epetra 
(proposed by masterleinad; merged) https://github.com/dealii/dealii/pull/19423

#19416: Polynomials::Monomial: Represent in product form for cheaper 
derivatives (proposed by kronbichler; merged) 
https://github.com/dealii/dealii/pull/19416

#19390: Give ReferenceCell a template argument 'dim'. (proposed by bangerth; 
merged) https://github.com/dealii/dealii/pull/19390

#19381: Prepare for pyramid refinement and allow for cells to have children of 
different referenc cells. (proposed by AndSte01; merged) 
https://github.com/dealii/dealii/pull/19381


## And this is a list of recently opened or closed discussions:

#19486: Regression tester regressed 335786 (opened) 
https://github.com/dealii/dealii/issues/19486

#19483: Regression tester regressed 5a231d (opened and closed) 
https://github.com/dealii/dealii/issues/19483

#19459: Regression tester regressed 8d024f (opened and closed) 
https://github.com/dealii/dealii/issues/19459


A list of all major changes since the last release can be found at 
https://www.dealii.org/developer/doxygen/deal.II/recent_changes.html.


Thanks for being part of the community!


Let us know about questions, problems, bugs or just share your experience by 
writing to [email protected], or by opening issues or pull requests at 
https://www.github.com/dealii/dealii.
Additional information can be found at https://www.dealii.org/.

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