Happily running 96.2 on the online machine. I'd like to start using segwit addresses, but just want to check that my offline 93.3 can sign segwit transactions ok? or would the offline need upgrading as well? Thanks.
In order to use SegWit addresse or be able to sign them you have to upgrade both, the online and offline machine to
Armory 0.96 or later (latest one is
0.96.2). Additionally you need at least
Bitcoin Core 0.13 or later (latest one is
0.14.2) for your online machine.
Older Armory versions won't be able to sign/spent from SegWit tx.
In newer Armory versions 0.96+ you can choose in your settings which address types you would like to use for receiving and change addresses.
There are three address types available after upgrade:
1) "
P2PKH": Legacy address type. Fully backwards compatible. (
With this one you can still sign from your offline PC without upgrading).
2) "
P2SH-P2PK": Compressed P2PKH script. Nested in P2SH output. (
This address type can only be signed by Armory 0.96+. But your underlying Bitcoin Node does not have to support SegWit to spend from it. This is usefull if you want to use the Bitcoin Cash blockchain - no SegWit support - and still be able to use a compressed address (lower fees)).
3) "
P2SH-P2WPKH": SegWit script. Nested in P2SH output. (
This is the new segwit address type. But only wallets that support SegWit will be able to spend from it. So if there will be any fork in the future and the new chain doesn't support SegWit you won't be able to spend from that alt-chain!).
