Starknet Roadmap

Phase 1 began with the launch of Starknet Mainnet, a validity rollup that uses STARK proofs to ensure the integrity of every state update. From the outset, Starknet has required a valid proof for every change to the network’s state, making it impossible for invalid transactions to slip through.

Starknet transactions settle on Ethereum by verifying STARK proofs that attest to each state transition. This ensures the network inherits Ethereum’s security guarantees and decentralization. Because proofs must be verified on Ethereum, no entity—not even StarkWare or the Starknet Foundation—can manipulate user data or assets without detection. Starknet also launched with native account abstraction, making smart-contract accounts the default and enabling developers to deliver Web2-style UX, such as passkey logins and biometric authentication.

Phase 2 focused on enhancing Starknet’s performance. The v0.13.2 ‘Bolt’ upgrade introduced parallel execution, enabling the simultaneous processing of independent transactions, thus increasing throughput. Block packing was also implemented, decoupling L2 block production from L1 state updates, leading to faster confirmations and lower L1 costs. Additionally, Starknet adopted Ethereum’s EIP-4844 upgrade, utilizing blobs for more efficient data availability. These enhancements enabled the network to reach several key performance milestones:

• 127 sustained tps
• 2-second transaction confirmations
• sub-cent fees

Phase 2 also marked meaningful progress toward Starknet’s decentralization goals. While the network has been secured by a fully functioning validity proof mechanism since inception, the long-term vision is to evolve into a fully decentralized Proof-of-Stake (PoS) network. Two important pillars advanced during this phase were:

This is Starknet’s current phase. It includes Starknet’s plan to become a unifying Layer 2 for both Ethereum and Bitcoin, and major advancements in decentralization.

Since announcing the campaign to become the execution layer for Bitcoin in early 2025, with the intention of scaling Bitcoin from 13 tps to thousands and enabling complex functionality such as DeFi dApps, a host of Bitcoin-related product offerings have already been implemented on Starknet, including:

• Lightning Network payments with the Braavos wallet
• Integration of the Xverse Bitcoin wallet on Starknet
• Atomiq provides cross-chain conversion solution for direct swap between native BTC and wBTC
• A federated Runes bridge with Asset Runes

As for decentralization, this phase both introduces more responsibilities to validators as part of the next stage of STRK staking, and also lays the groundwork for the full decentralization of Starknet, with a protocol upgrade implementing a distributed sequencer layer.

Phase 3 will also include major improvements to the network’s performance with the implementation of the open-source S-two prover into SHARP, the shared proving service, and the implantation of Cairo Native, which will allow for native smart contract execution. Both will bring about higher throughput and lower latency, as well as lower fees.

While advocating for the implementation of Bitcoin’s OP_CAT upgrade, which will enable Starknet’s trustless settlement on Bitcoin, Starknet is also actively researching and implementing other Starknet-to-Bitcoin bridges, like additional federated models, BitVMs and the ColliderVM, which will open the door to more Bitcoin DeFi on Starknet.

Other than advances on the Bitcoin front, Phase 4 will also align all the elements for full decentralization of the network with Starknet v0.15.0 and Staking v3 and v4:

Lastly, a S-two verifier on Starknet is expected to make it the default network for verifying client-side proofs. S-two, the fastest prover in the world and the most suited for client-side proving, was introduced during Phase 3.

The final phase of the Starknet roadmap will see Starknet’s staking protocol reach full decentralization with the decentralization of the proving mechanism. In addition, Starknet will operate as the unifying Layer 2, settling on both Bitcoin and Ethereum. Starknet will massively scale Bitcoin and natively open its community to complex use cases. As the execution layer of both Bitcoin and Ethereum, Starknet will enable the trustless flow of assets and a shared prosperity between the two largest blockchain communities.

As for performance, we can expect to reach 10,000+ TPS during this final phase. And while Phase 5 is the end of Starknet’s current roadmap, it’s only the beginning of what’s to come.

Stay tuned.

Last updated: Aug 10, 2025