Hey... I worked out a small speedup to initial blockchain load from bootstrap.dat (and likely rescan operations)... If you're interested it would be best implemented as a separate thread in the bitcoin node...
^ does this require mention in the release notes for 0.16?
oh already listed: #11054 :)
[bitcoin] jnewbery opened pull request #11055: getreceivedbyaddress should return error if called with address not owned by the wallet (master...getreceivedbyaddress_error) https://github.com/bitcoin/bitcoin/pull/11055