Aug 24, 2018

Notice the last comment on this page appears to be dated. A segwit block is being created by bitcoind at height 1. I assume bitcoind behavior has changed due to removal of bip9 activation code, but I have not looked into it. (If so this would be an undocumented bip90 style hard fork.) https://github.com/libbitcoin/libbitcoin-server/wiki/Regtest-Configuration