Peter Munch

@bangerth How do we want to proceed here. The term `quad` is just too often used in the library...

Quite many tests have failed. I went through all of them. Let me share some insight here what the reasons for the failing tests was: - Some functions in the...

I'll try to work on this PR in the next week(s).

> That's a mistake, if the manifolds are not set. > Is there a reason not to have manifolds on the coarse mesh? I'd copy the manifolds over. Copying manifolds...

Any opinions here: before or after the release? @bangerth @luca-heltai

Let's collect here places, where it is not trivial to remove `DoFHandlerType`. Maybe someone has a good workaround :) **Problem: classes are templated** - [x] distributed/solution_transfer.h + distributed/solution_transfer.cc -> `SolutionTransfer`...

I think we made good progress here. The open points are, as far as I see, relevant for release 9.4.

I think we can close this one after the release after the deprecated classes have been removed!

Why are the test outputs changing? Is it due to different values on the constrained entries or is this just a numerical artifact?

My guess is that one of the following PRs caused the problem: - https://github.com/dealii/dealii/pull/14085 - https://github.com/dealii/dealii/pull/14090 - https://github.com/dealii/dealii/pull/14119 According to the date ("3 days"), the last one. My guess is...