From a notice that Social Security has scheduled for publication in the Federal Register:
We propose to expand the definition of a public assistance (PA) household for purposes of our programs, particularly the Supplemental Security Income (SSI) program, to include the Supplemental Nutrition Assistance Program (SNAP) as an additional means-tested public income maintenance (PIM) program. In addition, we seek public comment on expanding the definition to include households in which any other (as opposed to every other) member receives public assistance. We expect that the proposed rule would decrease the number of SSI applicants and recipients charged with in-kind support and maintenance (ISM). In addition, we expect that this proposal would decrease the amount of income we would deem to SSI applicants or recipients because we would no longer deem income from ineligible spouses and parents who receive SNAP benefits and live in the same household. These policy changes would reduce administrative burden for low-income households and SSA.
Again, I'm not going to try to explain this. Just understand that it's good news for many SSI claimants.