After upgrading from 5.13 to 6.3 version i get a message
"Bamboo bootstrap failed: Unable to run pre-bootstrap upgrade tasks as your support period has ended. Please contact Atlassian Support at ....".
After getting key from myAtlassian new key contains "<" symbol.
I've changed old licence.string value to new key and get fillowing error: "Bamboo bootstrap failed: Failed to parse config file: Error on line 26 of document : Element type "PARTOFBAMBOOKEYAFTER<SYMBOL" must be followed by either attribute specifications, ">" or "/>".