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What we will eventually add in, however, is Silent Payments (BIP 351). First with Envoy, and then with Passport somewhere down the line.
Thanks, Silent Payments is a decent alternative to BIP 47, regarding the privacy it does the same , and even better.
UPD. Didn't pay attention at first. Did you really mean
BIP 351 rather than
BIP 352?
Silent Payment refers to BIP352 while BIP351 is relevant to different payment scheme which has some trade-offs: