Retroactive Grant Application - ZODL Q1 & Q2 2026 Core Protocol Development

Hi everyone,

ZODL has submitted an updated retroactive grant application covering work completed January through June 2026. This grant request includes protocol vulnerability remediation work, including the successful remediation of the Orchard vulnerability. This application supersedes our earlier Q1-only application; GitHub issue #33 has been updated in place.

Application: Retroactive Grant Application - ZODL Q1 & Q2 2026 Core Protocol Development · Issue #33 · Financial-Privacy-Foundation/ZcashCoinholderGrantsProgram · GitHub
Requested: $1,950,000 (previously $818,438 for Q1 alone)

Please read through the full GitHub application for details on all work performed during the 6-month period.

Happy to answer questions.

ZODL Team

18 Likes

This grant is more than justified by the security responses alone. Being on the bug-reporting side myself, and seeing the kinds of bugs that LLMs became capable of finding practically overnight, I can’t imagine what it was like to get hit with that firehose of security bug reports. To be able to triage and handle all of those reports while still being able to stay focused and quickly ship correct patches is unimaginable to me, totally a world-class effort. Like, what happened at ZODL and ZF through that period should be studied by academics or something… it was that good.

21 Likes

Incredible efforts over the path months, can’t imagine how this was wild for them to keep it up constantly. Truly an admirable team behind ZODL :clap: :rocket:

8 Likes

I noticed that both the Swift wallet SDK and the Android wallet SDK has been modified from a permissive MIT license to a fairly restrictive AGPL + commercial license required for distribution.

While it does look like this change was done in Q3, I do feel like that’s a fairly significant change that should be disclosed.

3 Likes

As you already mentioned, those changes were made in Q3 while our grant proposal only covers Q1 and Q2. Additionally, our grant application deliberately only includes work on the core protocol, not our Zodl mobile wallet. The SDK licensing changes mentioned only apply to our wallet which is funded separately (not grant-related).

My bad.

I previously noticed that the mobile SDK was part of the Q1 application (Retroactive Grant Application — ZODL Q1 2026 Core Protocol Development), but you’re correct that only librustzcash is part of this application and not the SDKs in the revised Q1/Q2 application.

1 Like