Change Lightning C49 to C89 tips

Hi,

I have heard that Apple cables will be using the C89 tip instead of the C48 tip... but I cannot find out what the difference is?

Is it better to wait until the new tip is available, will there be any benefit to charge cables that use this?

I have heard about the USB-C to Lighting tip which uses the C94 tip. But I cannot find any info on the C89 tip.

Thanks

Paul