dealii-9.3.0 release candidate 1

[Peter Munch]

Dear all,

We have tagged a first release candidate for the upcoming deal.II 9.3.0
release. You can find the sources and a generated offline documentation
here:

  https://github.com/dealii/dealii/releases/tag/v9.3.0-rc1

Alternatively, you can switch to the dealii-9.3 branch in your local git
repository

  git remote update
  git checkout v9.3.0-rc1

It would be great if you could test it on your machine with your typical
configuration! If no further regressions show up, we will release
Saturday May 29. The release progress is tracked in the following GitHub
issue:

  https://github.com/dealii/dealii/issues/12117

Thanks!

David, Matthias, Peter
on behalf of the deal.II developer team