I'm a bit confused.
According to https://bitcoincore.org/en/2018/02/26/release-0.16.0/#hd-wallets-by-default HD wallet is enabled by default. However there is still
keypool option of
bitcoind which sets how many addresses will be pregenerated on wallet loading.
keypool assumes regular wallet backups in order to not to loose keys generated above
keypool value and keypool restore.
So, my question is: with HD wallets does
keypool option have any meaning? And do I still need to do these regular backups?