How to listsinceblock mempool transactions? I am using listsinceblock RPC call to show me transactions relevant to my wallet addresses only. Absolutely useful feature, but I cannot figure out how to include also mempool transactions.

Is there something that would implement such functionality?

Thanks!
Currently there is no way to get this information. However Bitcoin Core does track this information (at least the block height at the time the transaction entered its mempool) so it should be possible to make such a command.

Note that listsinceblock is a wallet RPC so it cannot also work on the mempool due to the separation between the node and wallet that we are trying to make.