Notable issues and merges on Bitcoin Core, LND, c-lightning and libsecp256k1 Originally published by BitcoinOptech on newsletter #21 Bitcoin Core #14410 adds an ischange field to the getaddressinfo RPC indicating whether the wallet used the address in a change output. Bitcoin Core #14060 makes configurable the maximum number of messages the ZeroMQ (ZMQ) interface will queue for a client. The default High-Water Mark (HWM) allows up to 1,000 messages to be queued before some messages are dropped.