These PRs are merged into master and not breaking changes (I think): - https://github.com/rust-osdev/x86_64/pull/258 - https://github.com/rust-osdev/x86_64/pull/267 - https://github.com/rust-osdev/x86_64/pull/269 - https://github.com/rust-osdev/x86_64/pull/271 However, v0.14.4 is not yet released. When will it be?