Set default build source to 5.5.0-RC2 tarballs
(cherry picked from commit 98966cbf)
Resolves the merge conflict with master
encountered in !441 (merged).
System updates will be applied on Nov 25th between 7am and 9am, EST (UTC-05:00). This site will have intermittent downtime during that time.
(cherry picked from commit 98966cbf)
Resolves the merge conflict with master
encountered in !441 (merged).