Rance Howard

(has Dolby Vision and Atmos compared to the old 4K Blu-ray)

Shout! Factory 4K Blu-ray (caps)

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

Arrow 4K Blu-ray; caps

Arrow includes the original 70mm 6-track mix in a discrete form (4.1), as well as the matrixed 35mm Dolby Stereo mix (2.0), both from new transfers. The German Blu-ray uses an earlier transfer dating back to the LaserDisc for the stereo. Both sound good.

Arrow includes a 7.1 Atmos remix, whereas earlier releases include a 5.1 remix.

Theatrical Cut: Shout! Factory 4K Blu-ray
Extended Cut: The 30th Anniversary Extended Cut on fanedit.org has the additional TV footage and is also uncut.

The TV version is extended but is censored. The Shout! Factory 4K Blu-ray is restored from an interpositive, no release so far is confirmed to be from the Original Camera Negative.