react-spring 2.0 switches React and ReactRoblox wally scope from corepackages to jsdotlua. To prevent duplicated React packages, your project must also switch wally dependencies to the new jsdotlua scope. rbxts and legacy roact users are not affected by this breaking change.
roact-spring 1.0 bumps its promise dependency from v3 to v4. To migrate, ensure any usage of promises owned by roact-spring (e.g., using api.start():andThen()) is compatible with promise v4.