Anza

Anza is a Solana-focused research and development laboratory founded in January 2023 by experienced engineers who were central contributors to the original Solana Labs codebase. The organization describes its mission as building "the most robust Web3 protocols" and positions itself as a collaborative, open-source partner for core Solana infrastructure.

Agave Validator Client

The defining product of Anza's work is Agave, Solana's majority validator client. Agave originated as a fork of the solana-labs/solana monorepo, with core development formally transitioning to anza-xyz/agave beginning in January 2024. The transition proceeded in stages: v1.17 and v1.18 were released in parallel across both repositories through mid-2024, with v2.0 in October 2024 marking the point where Agave became the sole release vehicle. As of mid-2026 the repository carries 1,879 GitHub stars and 6,284 forks, reflecting its position as the primary upstream for Solana node operators.

Six binaries were renamed from solana-* to agave-* during the transition — including agave-validator, agave-ledger-tool, agave-watchtower, and agave-install — consolidating the brand under Anza's stewardship while maintaining backward compatibility for the broader operator community.

Technical Research and Protocol Work

Anza's engineering output spans multiple layers of the Solana stack.

Consensus — Alpenglow: Announced in 2025 and scheduled for mainnet deployment in Q3 2026, Alpenglow is a new consensus protocol designed to reduce finalization latency using BLS cryptography. The 2026 roadmap describes stress-testing fault scenarios and hardening incentive mechanisms ahead of the mainnet transition.

Block production — MCP and IBRL: Multiple Concurrent Proposers (MCP) shifts transaction ordering enforcement in-protocol to the replay stage, reducing leader-level ordering influence. In parallel, the Increase Bandwidth / Reduce Latency (IBRL) initiative targets 100M Compute Unit block limits, XDP-based shred transmission by default, and direct memory mapping inside the SVM. Anza previously maintained slot times below 400ms through earlier block limit expansions.

Security and slashing: Anza has developed and proposed slashing mechanisms under SIMD-0204 and SIMD-0212, alongside a dedicated adversarial testing function operated internally as the "Invalidator" team. A January 2026 security patch addressed gossip and vote processing vulnerabilities. The organization has also published research on post-quantum preparedness (the "Quantumglow" work) examining how Solana's cryptographic primitives would need to evolve in a quantum-computing threat environment.

Developer Tooling

Beyond the validator, Anza maintains a suite of open-source libraries used by on-chain program developers:

• Pinocchio — a Rust framework for writing high-performance Solana programs with a minimal footprint
• Codama — generates typed client code and interface descriptions (IDL-style) for Solana programs
• Solana Kit SDK — a JavaScript/TypeScript SDK for cross-environment Solana application development, versioned to v7 as of July 2026 with React hooks and transaction introspection
• P-Token — a lightweight alternative token implementation offering flexible design options relative to the standard SPL token program
• Mollusk — an SVM program test harness for offline unit testing of on-chain programs
• SBPF — a maintained fork of the Solana BPF virtual machine (originally solana-labs/rbpf)
• Wincode — a fast, bincode-compatible serializer focused on in-place initialization and performance

The Agave documentation site at docs.anza.xyz serves as the canonical reference for validator operators, covering hardware requirements, configuration, and operational guidance.

Organizational Approach

Anza operates with an open-source-first posture, publishing research blog posts alongside code releases. The blog has covered topics ranging from the Central Scheduler architecture and AccountsDB internals to Timely Vote Credits economics and validator issuance analysis. The organization publishes patch summaries and planned devnet restarts publicly to keep operators informed of network changes.

In its 2026 roadmap (Anza26), the team identified four categories of work: performance and liveness, operator experience (including Block Revenue Distribution under SIMD-0123), developer experience (rent reduction, larger transaction sizes, p-ATA migration), and user experience. The stated prior achievement of zero network downtime is cited as a baseline for continued reliability targets.

Anza's GitHub organization also maintains forks of the Rust compiler, LLVM, and Cargo, reflecting the depth of systems-level work required to optimize the Solana execution environment at a compiler and toolchain level.