Key updates in the blockchain technology sector for October include significant developments from Bitcoin and Ethereum, as well as notable advancements in various blockchain projects.
Bitcoin Core has officially released version 32.1, which includes enhancements such as parallelized block validation and improved fee estimation based on mempool data. This update addresses a potential IP address leak identified in the transaction broadcast method involving the -privatebroadcast=1 option. Additionally, Bitcoin Core revamped its security disclosure policy to speed up the reporting of easy-to-rediscover vulnerabilities across maintained releases.
Coinbase proposed a framework for Bitcoin’s future post-quantum migration, suggesting a lengthy transition period during which conventional and post-quantum signatures could coexist. The company emphasized the need for in-depth analysis of how these new signatures would impact block space and verification performance, particularly for institutional custodians.
On the Ethereum side, the Glamsterdam upgrade was initially activated on the Sepolia testnet on October 6. However, the anticipated Hoodi activation scheduled for October 26 was postponed to further assess compatibility issues with existing smart contracts. During testing, developers discovered a deposit handling flaw, but no funds were lost, and a fix has since been implemented.
Ethereum’s Hegotá upgrade is also progressing, with key elements being narrowed down. Certain proposals, such as EIP-8363, aimed at adjusting staking rewards, have been removed from the agenda as developers chose to engage in broader discussions about Ether issuance policy.
In Layer 2 developments, ZKsync unveiled Airbender Prime, a real-time Ethereum prover demonstrating impressive processing speeds, while Starknet launched Shadow Accounts to enhance user privacy and conducted a vote favoring further research into becoming an independent post-quantum layer.
Solana’s Alpenglow upgrade, activated on October 21, replaces the previous TowerBFT consensus mechanism with the Votor voting algorithm, enhancing transaction finality to a target of 150ms. Additionally, Solana Foundation introduced the Solana DvP settlement infrastructure for institutional clients, which has undergone external security audits.
BNB Smart Chain’s Jenner Hard Fork was activated on the Chapel testnet, introducing several new capabilities, although a mainnet date is still pending. Meanwhile, Aptos saw the execution of a governance proposal to enable full functionality of its encrypted transactions system, while also announcing a new execution engine expected to enhance transaction processing speeds significantly.
Celestia completed its v10 network upgrade, with benchmarks showing substantial performance improvements. Security issues have also surfaced, with Binance reporting a significant security breach that took place on October 30. Preliminary investigations suggest the attack might have originated from a compromised developer’s laptop, but no evidence of leaked wallet keys has been found.
As the month concludes, various blockchain projects are pushing forward with upgrades and security measures while facing ongoing evaluations of their respective systems.


