Marc Fehling

_ping_

I've updated the documentation text according to @bangerth's comment. @drwells I interpreted your 'thumbs up' that you'd prefer to bump the serialization version, so I did it in this PR...

`uint8_t` or `uint16_t` would also be possible data types. But choosing one would be the very last step :)

We will also need to bump the serialization version, as we will use a different datatype for active FE index checkpoints. https://github.com/dealii/dealii/blob/e6779913e7f770652da442b3c2460dec3e864029/source/distributed/tria.cc#L2024

I've been working on this recently to create a coherent interface. I realize that the collection objects in the `hp` namespace can potentially contain more elements than `active_fe_index` allows us...

In addition to what @tjhei said, I think we should start by copying the website to a new repository in the dealii github group. We can keep it private at...

The `doxygen` bibliography is not available for the continuous builds: https://www.dealii.org/developer/doxygen/deal.II/citelist.html The one of the 9.3 release is available though: https://www.dealii.org/current/doxygen/deal.II/citelist.html

Looks good! Could you add a test, i.e. enhance the existing test? Changelog would be nice, too! https://github.com/dealii/dealii/blob/master/tests/grid/rotate_01.cc

I encounter the same problem with `gcc 12.2.0` in `Release` mode. `Debug` mode is fine.

We should also exchange all h-refinement indicators with the function introduced in #16330 for `choose_p_over_h`.