Ok, it looks like this topic came up due to the comments of Taiko Audio, and after a lively conversation, they’ve retracted their statements. They’ve not been clear about the changes they made, and others in the original thread have speculated they had to do with HQPlayer or JPlay.
Unsure what more can be said about this claim, so if there are subsequent issues about SQ in Roon 1.7.537 or any other build, a new topic is most appropriate.