Athena - 21.6 Branch for MC Generators
This branch is currently used for:
- MC Generator Developments
Collecting diff-root changes to 21.X See merge request atlas/athena!24560 (cherry picked from commit 160c5931) 5cd597fa Merge branch 'master-diff-root-update' into 'master' 126c6c4d Merge branch 'master-diff-root-update-2' into 'master'