Hd wallets are supported from v0.13.0.
Currently it is easy to save hd seed and restore a wallet from it (due to changes in v0.17.0 and v0.18.0):
dumpwallet (read hdseed from it)
createwallet (blank wallet)
sethdseed (set hdseed on a blank wallet)
How to do this using v0.16.3?
Problems I encountered:
- I cannot find hdseed in dumped wallet file, so I don't know hd seed to backup
- creating new wallets is done by starting bitcoind and passing -wallet option, but I don't see a way to specify hd seed when creating a new wallet
Is that even possible without upgrading?