v5.0 - branched 3/11/2021

• v5.0 wiki page: https://github.com/open-mpi/ompi/wiki/5.0.x-FeatureList
• v5.0 Google Sheet here: https://docs.google.com/spreadsheets/d/1OXxoxT9P_YLtepHg6vsW3-vp4pdzGQgyknNbkzenYvw/edit#gid=0
• PMIx v4.0 Remaining Features - openpmix/openpmix#1256
• PRRTE v2 Remaining Features - openpmix/prrte#298
• Document new runtime via new docs
• Moved Due date to 2/15. Announced Q1 2022 at SC21.
• Released rc3 on March 08, 2022.

• 5/20/21: Planning an rc1 for June 2nd, 2021.
• 6/17/21: rc1 TBD.
• 8/3/21: Remaining CRITICAL items: https://github.com/open-mpi/ompi/projects/3
• 8/10/21: Decided on September 24th, 2021 as a hard rc1 cutoff.
• 8/26/21: Moved to September 23rd for RM convenience.