Bitcoin Gold is a fork of Bitcoin, sharing its history up until the block height 491407 (around October 24, 6am UTC). If you have held bitcoins on TREZOR before this block, you will have the same bitcoin gold balance as your bitcoin balance.

In other words, Bitcoin Gold is an altcoin, using Bitcoin’s history similarly to the case of Bitcoin Cash. However, Bitcoin Gold did not launch immediately at the point when the chains diverged.

Will TREZOR device support Bitcoin Gold?

Yes, TREZOR (the device) will support Bitcoin Gold. If you have held bitcoins on your TREZOR at the moment of the fork (block height 491407), you will also receive bitcoin gold on your TREZOR after the mainnet of BTG goes live. Both new and legacy accounts are supported in bitcoin gold. If you simply wish to hold BTC and BTG, there is no further action required from you.

To spend BTG, you will need to update your firmware.

With TREZOR, you own your private keys (in form of the seed), therefore you have control over all of your coins, including forked coins.

Will TREZOR Wallet support Bitcoin Gold?

UPDATE: Bitcoin Gold seems to have implemented replay protection. We will now begin developing support in the Wallet and a method to split the coins. Bitcoin Gold network is not live yet, only the testnet is running. The automated coin-splitting tool will, most likely, be adapted to support BTG too.

UPDATE (13 Nov): Bitcoin Gold finally released their source code allowing us to develop our infrastructure. The network is, however, not stable yet. More information will come as we progress.

UPDATE (16 Nov): We have successfully synchronized our Bitcoin Gold backend server and are now steps away from releasing full support. BTG will be included in the next firmware update, after the implementation is thoroughly tested by our team.

UPDATE (17 Nov): Release is planned for Monday, 20 Nov.

UPDATE (20 Nov): Bitcoin Gold support and claim tool released.