Comment made by: yegortimoshenko
I had a bug in a program where I presumed that file-seq would always return a sorted sequence, and I've catched it only after HFS+ -> APFS switch (file-seq always returns alphabetically sorted sequence in HFS+). I thought JVM would abstract away differences in file systems, and I was wrong. (I understand they don't do that for performance).
Given that, unlike sets or maps, sequences are ordered, I think it would be valuable to have this quality explicitly noted in the docstring, because it might not be evident just from the output.