June 2026 monthly summary for zed-industries/zed: Delivered a major refactor of git-operations to support reftable-backed repositories and future Git versions. Removed the libgit2 dependency, migrated remaining functionality to the git CLI and alternative Rust crates, and streamlined code paths under a unified GitBinary interface. This work fixed compatibility gaps for reftable storage, consolidated diff and repository handling, and prepared the codebase for upcoming Git changes. Expanded automated testing across core crates (git, buffer_diff, worktree, util, project) with a structured release plan and notes; manual testing for reftable scenarios remains, but automated coverage now exceeds prior baselines. Overall, increased stability, reduced maintenance burden, and improved build simplicity. Technologies/skills demonstrated include Rust crate refactoring, dependency management, CLI integration, high-fidelity diffing (imara-diff), binary data handling, and end-to-end test automation.