Universal 4K Blu-ray

Universal 4K Blu-ray - caps. Looks stunning against the horribly neutralized old master. Very glad Deakins supervised the new grade and had Universal restore his color filters.

Universal Blu-ray (included in the 4K edition) has the original 5.1 mix not on the 4K disc 

The original 5.1 surround mix from the 2011 USA BD was included alongside the new Atmos upmix. The compatibility track is a downmix of the Atmos. The Atmos is overall lightly remixed with noticeably more high frequencies rolled-off relative to the old 5.1. I think the 5.1 sounds better. The 5.1 mix from the USA BD was used as it sounds essentially the same as the EUR BD (with some minor loudness differences) while not featuring the dither noise and low frequency noise that the EUR has. Commentaries between the USA UHD and USA BD are the same, with both featuring Dolby Surround metadata

Audio comparison: 5.1 surround

Sony 4K Blu-ray replacement disc only

Sony 4K Blu-ray "4K DI, good resolution upgrade but mediocre encode" per nicolas

The replacement 4K disc fixes the missing LFE in the original disc.

Walmart exclusive BD has a bonus disc.