An early version of the script featured a Klatooinian named Lorc as Saw's pilot. But this was changed to Edrio Two Tubes to make a connection to Rogue One: A Star Wars Story (2016).
Saw Gerrera's U-Wing sports a black and white 'Partisan' paint job rather than the blue and white U-Wings seen in Rogue One: A Star Wars Story (2016). This is consistent with the black and white colored X-Wings that can be spotted on Jedha (one crashed in the city streets and several more outside Saw's base).
Now that he is part of the Rebel Alliance, Alexsandr Kallus wears a Captain's insignia on his jacket in navy blue.