Starknet alpha v0.12 uses Rust blockifier and LambdaClass’s Cairo VM to speed up transaction processing time for the sorter, achieving a huge leap in TPS. Cryptography researcher Henri summarized the upcoming content of the Starknet mid-term roadmap, including Volition, fee markets, EIP4844, etc.
1) Starknet alpha v0.12 solved the throughput problem, while Starknet v0.13 aims to solve the issue of storage, which accounts for over 90% of the transaction cost. This will be achieved mainly through Volition, allowing application developers to choose the security level of the storage contract they need. In the same contract, they can choose to store it on Ethereum or Starknet.
2) Starknet v0.14 mainly addresses the issue of the charging market of Starknet. Currently, Starknet has a fixed block gas price, and the sorter processes transactions on a first-in-first-out basis. The charging market reform will involve a lot of work, such as appropriate pricing of transaction components, dynamic gas prices based on L2 demand, and block events, etc.
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3) Transaction parallelization: When rewriting Blockifier for Starknet alpha v0.12, the team realized that the new Rust engine is faster without //txs than with //txs in the Python engine. Implementing //txs in Rust would have delayed the release of v0.12. Therefore, //txs was not used in v0.12, and it is expected that there will be a solution that doubles the throughput once it is released.