Solved
Hi!
I hope these pages was useful for you
https://confluence.atlassian.com/bamboo/bamboo-installation-guide-289276785.html
https://confluence.atlassian.com/bamboo/bamboo-upgrade-guide-720411366.html
https://confluence.atlassian.com/bamboo/bamboo-releases-671089224.html
What about 6.8.0 ?
Cheers,
Gonchik Tsymzhitov