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Date: Fri, 11 Jul 2025 07:25:45 -0700 (PDT)
From: Maxim Orlovsky <dr.orlovsky@gmail.com>
To: Bitcoin Development Mailing List <bitcoindev@googlegroups.com>
Message-Id: <90cb419b-93e9-4fab-8ce2-5e016932ab8fn@googlegroups.com>
Subject: [bitcoindev] RGB consensus layer released for production deployments
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boundary="----=_Part_104067_457472598.1752243945900"
------=_Part_104067_457472598.1752243945900
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Hello all,
I am glad to inform that after years of development (6 years since I had=20
joined to lead the project, and about 8-9 years in total) RGB finally got=
=20
stable: yesterday its consensus was released as RGB-I-0 (provided by=20
`rgb-core` rust crate of v0.12; more on version numbering can be found in=
=20
https://github.com/RGB-WG/RFC/blob/master/RGB-6.md).
In client-side validation world we face more complex change rules than in=
=20
bitcoin blockchain: if something was valid before and becomes invalid=20
(soft-fork in blockchain), in the client-side validation this is becomes a=
=20
backward-incompatible change (functionally similar to a hard-fork). Thus,=
=20
release of consensus layer for RGB had required us to build its complete=20
functionality, which is kind of ossified from the day of the release, with=
=20
a very small surface for possible future changes or upgrades.
Anyway, here we are: finally the protocol is complete, with all required=20
functionality (including support for zk-STARK compression) being present=20
there. Adding zk-STARK support was quite a challenge, which took most of=20
the last year, and required to re-think and re-do the virtual machine and=
=20
the full computing environment which was used by RGB. You can read the full=
=20
information about what=E2=80=99s coming with the released consensus layer i=
n the=20
official release=20
announcement: https://rgb.tech/blog/release-v0-12-consensus/
Those who are interested about more details what RGB is, may also watch my=
=20
presentation at the past BTC Pragure RGB=20
side-event: https://www.youtube.com/watch?v=3DQ34QcP2GMMU
NB: This is a consensus layer release, with standard library and=20
application-level library releases to follow during the next weeks.=20
However, this release is the most important among all of them, since it is=
=20
only consensus changes which can break contracts backward compatibility,=20
while the changes to any layers on top may require software or wallet=20
updates =E2=80=93 but would never break contracts and assets which were alr=
eady=20
issued. Thus, with this release, contracts become forward-compatible.
Developers and issuers can now deploy contracts on testnet and Bitcoin=20
mainnet using this stable release. But for security and consistency, please=
=20
re-issue any contracts created with pre-release versions.
Kind regards,
Maxim Orlovsky
Lead engineer at
LNP/BP Standards Association
& Pandora Prime SA
--=20
You received this message because you are subscribed to the Google Groups "=
Bitcoin Development Mailing List" group.
To unsubscribe from this group and stop receiving emails from it, send an e=
mail to bitcoindev+unsubscribe@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/=
90cb419b-93e9-4fab-8ce2-5e016932ab8fn%40googlegroups.com.
------=_Part_104067_457472598.1752243945900
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Hello all,<div><br /></div><div>I am glad to inform that after years of dev=
elopment (6 years since I had joined to lead the project, and about 8-9 yea=
rs in total) RGB finally got stable: yesterday its consensus was released a=
s RGB-I-0 (provided by `rgb-core` rust crate of v0.12; more on version numb=
ering can be found in https://github.com/RGB-WG/RFC/blob/master/RGB-6.md).<=
/div><div><br /></div><div>In client-side validation world we face more com=
plex change rules than in bitcoin blockchain: if something was valid before=
and becomes invalid (soft-fork in blockchain), in the client-side validati=
on this is becomes a backward-incompatible change (functionally similar to =
a hard-fork). Thus, release of consensus layer for RGB had required us to b=
uild its complete functionality, which is kind of ossified from the day of =
the release, with a very small surface for possible future changes or upgra=
des.</div><div><br /></div><div>Anyway, here we are: finally the protocol i=
s complete, with all required functionality (including support for zk-STARK=
compression) being present there. Adding zk-STARK support was quite a chal=
lenge, which took most of the last year, and required to re-think and re-do=
the virtual machine and the full computing environment which was used by R=
GB.=C2=A0<span>You can read the full information about what=E2=80=99s comin=
g with the released consensus layer in the official release announcement:=
=C2=A0https://rgb.tech/blog/release-v0-12-consensus/</span></div><div><br /=
></div><div>Those who are interested about more details what RGB is, may al=
so watch my presentation at the past BTC Pragure RGB side-event:=C2=A0https=
://www.youtube.com/watch?v=3DQ34QcP2GMMU</div><div><br /></div><div>NB: <sp=
an>This is a consensus layer release, with standard library and application=
-level library releases to follow during the next weeks. However, this rele=
ase is the most important among all of them, since it is only consensus cha=
nges which can break contracts backward compatibility, while the changes to=
any layers on top may require software or wallet updates =E2=80=93 but wou=
ld never break contracts and assets which were already issued. Thus, with t=
his release, contracts become forward-compatible.</span></div><div><br /></=
div><div>Developers and issuers can now deploy contracts on testnet and Bit=
coin mainnet using this stable release. But for security and consistency, p=
lease re-issue any contracts created with pre-release versions.<br /></div>=
<div><br /></div><div>Kind regards,</div><div>Maxim Orlovsky</div><div>Lead=
engineer at</div><div>LNP/BP Standards Association</div><div>& Pandora=
Prime SA</div>
<p></p>
-- <br />
You received this message because you are subscribed to the Google Groups &=
quot;Bitcoin Development Mailing List" group.<br />
To unsubscribe from this group and stop receiving emails from it, send an e=
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ev+unsubscribe@googlegroups.com</a>.<br />
To view this discussion visit <a href=3D"https://groups.google.com/d/msgid/=
bitcoindev/90cb419b-93e9-4fab-8ce2-5e016932ab8fn%40googlegroups.com?utm_med=
ium=3Demail&utm_source=3Dfooter">https://groups.google.com/d/msgid/bitcoind=
ev/90cb419b-93e9-4fab-8ce2-5e016932ab8fn%40googlegroups.com</a>.<br />
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