October 2025 performance summary for TaceoLabs/co-snarks: Focused delivery on performance optimization, privacy-preserving circuit capabilities, and foundational recursive verification architecture to enable scalable proofs. Key progress included a batch inversion performance enhancement for barycentric denominator terms in Barycentric evaluation, the initial MegaCircuitBuilder implementation to support hiding circuit keys with MPC/ECC modules, and foundational components for recursive verification with updates to MPC backends and verifier traits. These efforts are underpinned by a suite of commits that implement the core features and refactors, driving down runtime costs, enabling private circuit construction, and establishing a scalable verification roadmap.

August 2025 monthly summary for TaceoLabs/co-snarks. Key deliverables focused on expanding the Protogalaxy prover ecosystem and hardening correctness in prover logic. Delivered the Protogalaxy prover family (plain and co-protogalaxy variants) with dedicated modules and tests, plus refactors to support multi-instance folding in the co-builder and UltraHonk crates. Resolved a critical correctness issue in grand product computation for inactive regions by fixing index calculations and assignments in prover logic. These efforts improve scalability, reliability, and throughput for batch proofs, aligning with roadmap goals for efficient, batched circuit proofs across the repository.

July 2025 monthly summary for TaceoLabs/co-snarks: Implemented a modular crate architecture and shared component refactor to enable reuse across crates, introducing common, co-goblin, goblin crates and the co-merge-prover. Refactored components from ultrahonk and co-ultrahonk into the new common crate, and restructured dependencies and internal modules to support scalable development.

Month: 2025-03. Key feature delivered: Introduced TwoAdicMultiplicativeCoset struct for coset management in the p3-field crate, refactoring to use it for handling cosets of multiplicative subgroups. Commit Coset crate (#676) with hash fa4a4e29ba127758cbcf085786694853c325932f. Major bugs fixed: none documented. Overall impact: Improved code organization and maintainability with potential performance improvements in coset handling; readiness for future optimizations. Technologies/skills: Rust, crate refactoring, modular design, coset math, commit traceability.