Royal Caribbean has announced 4 additional dates for cruises with the option to book a kosher meal plan, in August 2026, on 2 of the company's ships:
The Anthem of the Seas (departing from the US),
And the Odyssey of the Seas (departing from Europe).
From past experience, places at the Kosher restaurant sell out quickly, so if this is relevant to you - hurry up and book. Remember that you can cancel free of charge until the last payment date, so you will have to make the decision about whether to go or not about three months in advance.
Kosher meals are an additional cost, and must be ordered as an add-on at the time of booking the cruise itself.