I didn't use offset arrays, but I don't expect lots of incompatible libraries if they implemented the proper array interfaces. Julia has duck typing, and thanks

I didn't use offset arrays, but I don't expect lots of incompatible libraries if they implemented the proper array interfaces. Julia has duck typing, and thanks to multiple dispatch they can just specialize the few relevant methods that actually use the new type special properties. Many of the most used Julia types are defined outside of the standard library, such as StaticArrays (for fixed size arrays) and CUArray (for GPU processing).