You can now change part of your seed phrase without changing the wallet address.

A seed phrase is two halves:

1. First 12 words — the address. These never change.
2. Last 12 words — the key that signs sends. These can be swapped.

New wallets start with just 12 words. After the first change, you get 24. Every next change replaces only the last 12. Same address. You can do this more than once, even before the wallet is used on-chain.

If someone saw only the last 12 words, change them and that leak stops working.

If someone saw the whole phrase, this is not a magic undo. They can still empty the wallet until the change goes through. If you’re not sure you can beat them to it, make a new wallet and move the funds.

Not in the public app yet. So far this lives only in Wallet Engine, the toolkit wallets are built on.

Source: https://t.me/reseachy/125