Cardano is advancing its long-term scaling technique with a contemporary wave of Layer-2 (L2) improvements, transferring past the Hydra framework.
This subsequent section was outlined throughout a high-level analysis session in June 2025, organized by Enter Output World (IOG), the core improvement group behind Cardano.
The occasion convened technical leaders from the Intersect Working Group, builders from outstanding Cardano-based initiatives, and tutorial companions.
Collectively, they outlined a roadmap the place Hydra is only one a part of a broader L2 portfolio designed to enhance velocity, privateness, and interoperability throughout the ecosystem.
Layer-2 options
On the occasion, a number of L2 options, together with Midgard, Hydra, and others, had been spotlighted throughout the session.
Hydra, constructed initially for quick off-chain transactions, now has two key configurations. One model, Hydra Head, focuses on small, fastened participant teams utilizing state channels, whereas the opposite, Hydra Tail, adopts a rollup mannequin geared toward larger transaction volumes.
Midgard, developed by Anastasia Labs, was launched as a Cardano-native optimistic rollup.
The mission options deterministic fraud proofs and minimal reliance on centralized governance. It was impressed by the design of the Ethereum layer-2 resolution Optimism and Gas. Its mainnet launch is anticipated by the tip of the yr.
In the meantime, two zero-knowledge-based initiatives, zkFold and Eryx, featured prominently on the Cardano occasion.
zkFold compresses a whole lot of transactions right into a single submission for elevated effectivity. Alternatively, Eryx goals to deploy a ZK bridge that allows safe communication between Cardano chains.
One other presentation got here from Sundae Labs, which is engaged on Gummiworm, a Hydra-inspired rollup that separates execution from custody. This alteration may assist extra versatile DeFi operations on Cardano.
Cardano L2 targets
The panelists emphasised that Cardano’s future is determined by a portfolio of interoperable L2s, relatively than a single dominant resolution.
They acknowledged that every L2 will serve distinct roles, sustaining composability by means of frequent requirements and shared infrastructure.
In line with them:
“The aim is to supply a portfolio of options optimized for various use circumstances—starting from DeFi and privateness to high-throughput purposes—underpinned by shared requirements that guarantee seamless cross-protocol interplay.”
In the meantime, additionally they harassed the necessity to construct a unified interface layer to make sure clean interplay throughout these L2s. Contributors famous that this strategy goals to keep away from the fragmentation seen in Ethereum’s scaling ecosystem.
Nevertheless, they famous that challenges like liquidity fragmentation and poor person expertise stay hurdles to adopting the L2 options.
Because of this, they proposed a number of options, together with liquidity bonding, higher cross-protocol integration, and incentive constructions that reward customers and builders.