lnd has some interesting bip39 improvements

hip-0039.md

@@ -21,6 +21,14 @@ This is HIP039 describing mnemonic seedphrases for Hush wallets.
 # Motivation
 
 Mobile lite wallets require a seedphrase which users can backup all addresses and funds in the wallet.
+We are not interested to follow BIP39 exactly, but to use the latest improvements related to it's goal.
+
+This project has some promising improvements to BIP39, notably embedding the "wallet birthday" directly
+in the seed and versioning:
+
+https://github.com/lightningnetwork/lnd/tree/master/aezeed
+
+The improved KDF of scrypt will likely be used in HIP39.
 
 # Specification