[bitcoin-dev] Progress on bech32 for future Segwit Versions (BIP-173)

Russell O'Connor roconnor at blockstream.com
Thu Oct 8 15:21:47 UTC 2020

On Thu, Oct 8, 2020 at 11:00 AM David A. Harding via bitcoin-dev <
bitcoin-dev at lists.linuxfoundation.org> wrote:

> Rather than go through that again, I'd prefer we use the
> backwards compatible proposal from BIPs PR#945 and, if we want to
> maximize safety, consensus restrict v1 witness program size, e.g. reject
> transactions with scriptPubKeys paying v1 witness programs that aren't
> exactly 32 bytes.

Adding some kind of relay policy rule would be easier than a consensus
rule, and maybe effective enough.  (This comment is not intended to endorse
any one proposal over another.)

> Hopefully by the time we want to use segwit v2, most software will have
> implemented length limits and so we won't need any additional consensus
> restrictions from then on forward.
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