Transaction with nVersion=2

[peter-sanderson]

@andrewkozlik:

The implication is that to make use of BIP68 you need nVersion to be 2. Indeed, it appears to be the only reason why someone would need to use nVersion 2, but that's actually beside the point IMO. We don't make use of the feature specified in BIP68, so we can use nVersion 1 or 2. So the only question is which nVersion makes Trezor Suite stand out the least. That would seem to be nVersion 2.

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Produce transactions with nVersion=2 to reduce a fingerprint surface as it seems most of the wallets use the version 2. And it enables the BIP68

Sources:

• https://ishaana.com/blog/wallet_fingerprinting/

  A basic transaction has version number of 1, but most modern bitcoin transactions now use a version number of 2.

• https://learnmeabitcoin.com/technical/transaction/#structure-version

  Only nVersion 1 and 2 are standard. Use of certain opcodes requires nVersion to be set to 2. Some wallets generally use version 2, while others still use version 1.