Hi @BrianRose. As we're based in the UK, I recommend contacting Samsung in your region for details on this (I can say the update is being released this month for the UK S9, S9+ and Note9).
Hi @GromUKR. You should still be able to download and install Samsung+ if your S9|S9+ is a US one; plus Smart Switch should also be able to find available updates for your model. With a lot of US Samsung smartphones being carrier variants though, it may be worth getting in touch with the phone's original network's services for more info if Smart Switch isn't giving you any joy.
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