Supra, the first MultiVM Layer-1 blockchain built for what it describes as Automatic DeFi, has introduced Hydrangea++, an upgraded version of its Hydrangea consensus protocol. The team positioned this advancement as an effort to push blockchain performance closer to the physical limits of information transmission. With this enhancement powering a single unified chain featuring native oracles, randomness generation, automation, MultiVM execution, and autonomous DeFi components, Supra aims to reduce the friction that traditionally exists between concept and deployment.
The company emphasized a longstanding reality within blockchain systems: although every transaction, swap, mint, and trade could theoretically finalize much faster, the industry had not fully confronted the constraints imposed by physics rather than cryptography or mathematics. Over the past decade and a half, most blockchains were structured around those physical limitations instead of trying to significantly compress them. Hydrangea++ is presented as a direct response to this challenge.
Building on the Original Hydrangea Breakthrough
Supra’s original Hydrangea consensus design questioned a foundational assumption about blockchain performance. The prevailing belief held that accelerating two-round commits would inevitably reduce fault tolerance. Hydrangea demonstrated that this assumption was not absolute, offering two-round optimistic commits with a stronger resilience profile. It introduced tolerance for Byzantine faults and crash faults, along with a tunable performance parameter, allowing the protocol to finalize blocks in two communication rounds when network conditions were favorable. Under adversarial conditions, Hydrangea used three rounds while still maintaining high safety guarantees.
The protocol’s significance was underscored when it was referenced in the Ethereum Foundation’s August 2025 fast-finality research track, placing it among the designs being evaluated for Ethereum’s possible future upgrades.
While the original Hydrangea addressed a theoretical barrier, the updated Hydrangea++ is intended to address the physical one.
Hydrangea++ Targets One-Network-Delay Proposal Latency
The revamped protocol integrates optimistic proposals from Supra’s Moonshot algorithm into the Hydrangea resilience model. This change creates a proposal pipeline capable of operating at a single network delay. Traditional consensus mechanisms typically require multiple rounds of signaling before a block proposal even begins, creating a fixed waiting period often treated as unavoidable. Hydrangea++ removes that delay entirely, enabling proposals to begin almost immediately.
Supra in 10 seconds:
One chain.
MultiVM (Move + Ethereum + Solana).
Native oracles, automation, randomness and cross-chain built in.No bridges. No rewrites.
Just an L1 that works together by default.🎥 Multichain Day highlight 👇 pic.twitter.com/mK7k3uDIyd
— Supra (@SUPRA_Labs) December 4, 2025
The company characterized this development not as an incremental optimization but as a protocol designed to align with the physical limits of modern Internet infrastructure.
Benchmark tests comparing Hydrangea++ to Minimmit, a protocol developed by Commonware for the Tempo blockchain, demonstrated notable performance gains across 51 nodes spread across ten global regions. Supra reported one-network-delay proposal latency, an 11% faster end-to-end latency than Minimmit in geographically distributed scenarios, 35% higher throughput under realistic loads, and consistent performance even under conditions involving packet loss, jitter, or errant node behavior. The team stated that these gains do not compromise security or fault tolerance.
Hydrangea++ was described by Supra’s research team as offering fast finality without fragile assumptions, remaining stable in adverse network conditions while preserving its two-round and three-round finality logic when needed. Researchers said the protocol unifies speed and resilience by breaking the long-accepted latency trade-off.
Reimagining What Applications Can Do Without Performance Limits
Supra emphasized that Hydrangea++ is not simply about fractional millisecond improvements but about removing a baseline performance barrier that has constrained DeFi systems, oracles, and smart contracts since blockchain’s inception. With the new protocol, markets can move closer to the speed of information instead of the rhythm dictated by block production. Price oracles can update rapidly enough to prevent arbitrage gaps, liquidations can execute precisely when thresholds are reached, and multi-step processes can feel nearly atomic. The company stated that wallets and applications will feel more instantaneous, with finality arriving faster than users consciously perceive.
Supra’s leadership added that maintaining high speed during real-world disruptions is essential, noting that reliability is most critical when conditions are unstable.
Foundation for Supra’s Fully Integrated Layer-1 Stack
Hydrangea++ sits at the core of Supra’s vertically integrated architecture. The full stack includes consensus, native oracle infrastructure, verifiable randomness, automation, cross-chain communication, AI-assisted threshold oracles, MultiVM execution, and what the team describes as industry-leading EVM parallelization. Each component is designed as part of a cohesive system to minimize complexity, reduce latency, and eliminate dependency-related security gaps.
The upgraded consensus protocol has already been implemented on Supra’s global DevNet and tested under production-level workloads. Mainnet integration is currently underway, and the technical specifications are publicly accessible for community review. Supra framed this milestone as a shift from designing around blockchain limitations to designing at the edge of physical constraints.
The company stated that the speed of light is no longer a metaphor in its engineering philosophy but an operational benchmark guiding the next phase of its network evolution.