Cardano IOG Halts Acropolis and Tiered Pricing Development, Reallocates 4.1M ADA to Boost Cardano Growth

Cardano engineering arm Input Output Global (IOG) has announced a strategic shift in its development priorities to accelerate the network’s long-term growth.

Specifically, the organization will halt further work on the Acropolis project and cancel the proposed Tiered Pricing model. Instead, it will redirect resources toward chain abstraction technologies and development aligned with the upcoming Leios scaling architecture.

Key Points

• Cardano engineering firm IOG has halted further development of the Acropolis project and the proposed tiered pricing mechanism.
• The firm will redirect resources toward chain abstraction technologies and development aligned with Ouroboros Leios to accelerate Cardano’s long-term growth.
• This move will see roughly 4.1 million $ADA returned to Cardano’s treasury for community governance allocation.
• Cardano founder Charles Hoskinson expects Leios to launch this year.

IOG Cancels Acropolis and Tiered Pricing Development

In a recent blog post, IOG confirmed that it will officially end development of the Acropolis project this month, April 2026. Originally designed as a Rust-based alternative node implementation for the Cardano network, Acropolis aims to increase node diversity and strengthen the ecosystem’s infrastructure.

Notably, the project delivered several milestones, including a Data Node that enables blockchain synchronization in roughly an hour rather than several days. However, IOG concluded that continued development would no longer deliver the greatest value to the ecosystem.

As a result, the engineering team behind Acropolis will transition to a set of chain abstraction initiatives designed to simplify how developers and users interact with Cardano.

Meanwhile, IOG has also canceled the proposed Tiered Pricing mechanism. New research tied to the Leios scaling architecture showed that the design could soon become outdated.

Since Leios introduces a fundamentally different model for transaction processing and throughput, the organization believes continuing the Tiered Pricing framework would likely create unnecessary technical debt.

Notably, IOG founder Charles Hoskinson previously expressed a strong interest in launching Leios this year. He argues that the upgrade could help Cardano achieve the long-standing blockchain trilemma of scalability, security, and decentralization.

We’re changing course to prioritize Cardano’s growth. We are ceasing development on Acropolis to focus on chain abstraction and cancelling Tiered Pricing to align with the Leios roadmap. This decision returns ₳4.1M to the Treasury. We’re putting resources where they deliver the…

— Input Output Group (@IOGroup) April 7, 2026

Reallocation of 4.1M $ADA Resources

As part of this strategic shift, IOG will return the full 2.7 million $ADA allocated for Tiered Pricing development, along with the remaining 1.4 million $ADA assigned to Acropolis. In total, 4.1 million $ADA will be returned to the Cardano Treasury, where the funds can be redistributed through the network’s governance process.

IOG emphasized that transparency and responsible stewardship of community funds guided the decision. Rather than continuing projects that no longer align with Cardano’s evolving roadmap, the organization chose to halt development and reallocate the resources.

Looking ahead, IOG believes that improving usability and developer accessibility will serve as the strongest catalyst for Cardano’s expansion.

By reducing friction for developers and users alike, the organization hopes to attract more applications, increase on-chain activity, and ultimately drive greater liquidity and economic participation across the ecosystem.