Did AP just retire the silver/white 15550 Royal Oak?

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This Royal Oak was originally 15550ST.OO.1356ST.01 for the 50 anniversary (with the 50th rotor), but the new reference post 50 anniversary is now reference 15550ST.OO.1356ST.05
(https://www.audemarspiguet.com/com/e...1356ST.05.html)

All of the other dial variants in the 15550ST range are available when you visit the site and look at either “All watches” or the “Royal Oak collection” with the exception of the silver dial. And when you go to the page for the current reference linked above, it’s the only 15550 reference that doesn’t have a price on the page.

Did AP stealthily retire the silver dial for 37mm steel? If so, that’s a really short run for that model as it just came out in January last year (~11 months)