Linux 7.4 is set to drop the C Binder driver in favour of the Rust implementation

Sources: Phoronix report, HN submission
Summary: Phoronix reports that Google engineer Carlos Llamas posted a patch removing roughly 11,000 lines of the legacy C Binder IPC driver, writing that after 15 years the C driver became painful to maintain and hard to extend without tripping over vulnerabilities. The Rust Binder driver, largely Alice Ryhl's work, was upstreamed in Linux 6.18, has reached feature parity, matches or beats the C driver on performance and has been running on Android devices in production. Greg Kroah-Hartman has queued the removal into char-misc-next for the Linux 7.4 merge window, and this account rests on Phoronix rather than on a linked patch posting.
Why it matters: A Rust driver replacing rather than paralleling a widely deployed C subsystem sets a precedent other Rust-for-Linux work will be measured against, which is inference and not a claim the Phoronix report makes.
Follow-up: Track whether the removal lands in the Linux 7.4 merge window as queued.