During June 2025, Andrey Maiboroda focused on enhancing the documentation quality of the ethereum/execution-specs repository by addressing redundancy in the network upgrade history. He identified and removed a duplicate entry for the Cancun upgrade in the README.md, ensuring the documentation accurately reflected the sequence of network upgrades. This targeted fix, implemented using Markdown and documentation best practices, improved the integrity of historical references for developers and auditors. By maintaining consistency and preventing documentation drift, Andrey’s work supported reliable upgrade planning. His contribution demonstrated attention to detail and a methodical approach to documentation maintenance, though the scope was limited to a single patch.