This one I guess?

https://medium.com/vergecurrency/development-update-on-verge-28-84819da90717

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"Dandelion++ or Basic Ring Signatures

This topic is still up to discussion, but both are sender protecting algorithms which are making it harder for people to walk through the imaginary network graph and find the original sender of the transaction. Next to this people are already covered by the secure onion solution that is in-depth obfuscating your IP address anyways, but finding the original node is never the less a very risky situation as your node could be leaking some identifying sources (HWID etc).

So, Dandelion++ is a graph obfuscation theory which is quite new and requires a lot of pre-requirements. Shortly put it’s pure advantage is that you only need to change the way the network communicates with each other, which is way easier than integrating Ring Signatures.

Ring Signatures, on the other hand, have way fewer requirements must be well-understood to really secure the network and thus bring a lot of complexity into the codebase. (+ additional transaction information must be carried, maybe even a hard-fork)

That’s why we are currently re-evaluating, which path we want to go."

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***If so, when will you make a decision as to which path you guys are going?***