During Q3 2025, Least Authority (in their role as the Zcash Ecosystem Security Lead) undertook an audit of the changes implemented in Zebra in order to support the NU6.1 Zcash network upgrade.
We are pleased to announce that the audit was favorable and that, at the time of writing, we have addressed all of the suggestions in our 3.0.0 NU6.1 stable release.
You can find a link to the audit report in Least Authority’s blog post.