Hi Sven, Would you mind bumping to 5.0.0_rc1 (unkeyworded) for wider testing? Quite excited to see movement towards it finally. Thank you!
5.0.0 is now out.
This required more work than expected - mostly removing patches, adding a new one and removing configure flags - but I have a working version at: https://github.com/hhoffstaette/portage/tree/master/app-misc/screen This includes the changes from pending PRs, incl. my multiuser rework. Feel free to steal.