Git 3.0 is tentatively planned for release in September 2026. It will bring SHA-256 and reftable as defaults, as well as mandatory Rust support. It would be helpful if Debian built the package in experimental with WITH_BREAKING_CHANGES to test out the SHA-256 and reftable support so that Debian users and developers can test these features out and make any appropriate changes. Rust support will be enabled by default in either 2.54 or 2.55, so enabling that by default in experimental would be helpful as well.