Notable issues and merges on Bitcoin Core, LND, c-lightning and libsecp256k1 Originally published by BitcoinOptech on newsletter #19 Bitcoin Core #14451 Allows optionally building Bitcoin-Qt without support for the BIP70 payment protocol and adds a deprecation warning indicating the default support may be removed in a future release. The CEO of BitPay, which is the largest user of BIP70 (but which wants to use a different version of the protocol), indicated that they supported Bitcoin Core removing BIP70.