I am working on the supplement as we speak. The big holdup for me is that Ukrposhta released two self-stamps in 2022. MICHEL assigned a catalog number for the first stamp released on July 5, 2022.
But the second self-stamp, released on November 18, 2022 does not have a MICHEL number.
Since MICHEL skipped right past it in their numbering system, I can’t even guess what the MICHEL number will be.
For now, it’s going in without a catalog number, and I will release an updated page when this gets an official catalog number.
I sent an email to the editor of the MICHEL catalog a few weeks ago, but have not gotten a reply yet.