added another versioning warning

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Shannon Appelcline 2020-07-14 10:21:01 -10:00 committed by GitHub
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@ -6,7 +6,7 @@ One of the greatest powers of PSBTs is the ability to hand transactions off to h
So, you have three options for moving through this chapter on hardware wallets: (1) read along without testing the code; (2) install Bitcoin on a local machine to fully test these commands; or (3) skip straight ahead to [Chapter 8: Expanding Bitcoin Transactions in Other Ways](08_0_Expanding_Bitcoin_Transactions_Other.md). We suggest option #1, but if you really want to test these commands out we'll also give some support for #2 by talking about using a Macintosh for testing (a hardware-platform supported by [Bitcoin Standup](https://github.com/BlockchainCommons/Bitcoin-Standup)).
> :warning: **VERSION WARNING:** PSBTs are an innovation from Bitcoin Core v 0.17.0. Earlier versions of Bitcoin Core will not be able to work with the PSBT while it is in process (though they will still be able to recognize the final transaction).
> :warning: **VERSION WARNING:** PSBTs are an innovation from Bitcoin Core v 0.17.0. Earlier versions of Bitcoin Core will not be able to work with the PSBT while it is in process (though they will still be able to recognize the final transaction). The HWI interface appeared in Bitcoin Core v 0.18.0, but as long as you are using our suggested setup with Bitcoin Standup, it should all be fully integrated.
> :warning **FRESHNESS WARNING:** The HWI interface is very new. It may be hard to install correctly and it may have unintuive errors. What follows if a description of a working setup, but it took several tries to get right, and your setup may vary.