During March 2026, this developer focused on upgrading the base version of the typelevel/fs2 repository from 3.12 to 3.13, ensuring alignment with the latest features and stability improvements. The work involved careful build management using Scala, addressing compatibility for future releases and downstream projects. By updating the foundational dependencies, the developer enabled the project to benefit from recent bug fixes and enhancements introduced in the newer version. This upgrade required a solid understanding of Scala’s build ecosystem and attention to detail in dependency management, laying the groundwork for smoother integration and ongoing maintenance within the fs2 codebase.