db1063 will replace current s5 master as part of: T162133
It needs to be recloned.
It is currently running Jessie 8.7 and 10.0.29 so only recloning is needed. I would not upgrade it to 10.0.30 (although we have slave servers running that version for almost a month without any issues).
I would suggest we reclone from db1071 as it is running 10.0.23 the other hosts: db1070, d1082, db1087 and db1092 are running 10.0.30 so it might not be ideal