Version 2.9.0-3 of dune-grid-glue is marked for autoremoval from testing on Wed 10 Apr 2024. It depends (transitively) on alberta, dune-grid, affected by #1060076, #1064561. You should try to prevent the removal by fixing these RC bugs.
This package will soon be part of the mpi-defaults transition. You might want to ensure that your package is ready for it.
You can probably find supplementary information in the
debian-release
archives or in the corresponding
release.debian.org
bug.