QA:Backwards Compat Grid

Build 2480 on theme-final-1
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Baseline History
Build 2480dedff58
Current build. There are unaccepted changes, so build 1221 is still the baseline.
Build 122101c6ae0 current baseline
Accepted by Liberty Curtis.
Build 659718b5c4
Accepted by heswell.
Build 631773c784
Accepted by Zhihao Cui.
Commenting is disabled because there's a newer build on this branch