Description of problem: Tracker bug for 5.12
REVIEW: https://review.gluster.org/24176 (doc: Added release 5.12 notes) posted (#1) for review on release-5 by hari gowtham
REVIEW: https://review.gluster.org/24176 (doc: Added release 5.12 notes) merged (#1) on release-5 by hari gowtham