Update changelog for 15.3.1
(cherry picked from commit 3c0906ca241c767409cb1e2634bee08065a01ec3)
P
Paul O’Shannessy committed
9af8be654bebe800c49871f2c7ad33b673113a3b
Parent: a874196
(cherry picked from commit 3c0906ca241c767409cb1e2634bee08065a01ec3)