What’s the difference between Oceania Riviera and the new Allura-Class ships?

Oceania Riviera launched in 2012, while the newer Allura-class ships debuted in 2023. Oceania Riviera offers traditional staterooms that range from inside cabins to suites, while Allura-class ships feature all-balcony staterooms. The newer ships also have more dining options and generally offer more open space to move around.