Looking at upgrading from the old Rive (formerly Flare) to the new Rive? Here's a list of some of the new features!
The new editor is collaborative. You can work with your team on the same files, in real time, from any location.
The new editor has a ton of new features (like snapping, better selection tools, improved grouping, improved draw order) and behaves more like common screen design tools, so most designers will feel at home.
There are new runtimes that are lighter weight and more efficient, particularly the native iOS and Android ones.
The web runtime is a massive improvement with a much smaller file size and two options: a powerful low-level wasm runtime and a simpler version that is easy for anyone to use.