Guaranteed valid nul-terminated UTF-8 C strings.
If there's some functionality you need which std's str or CStr provide but
CStr8 doesn't, or similarly with CString and CString8, please open an
issue; lack of feature parity is considered a bug.
The name is derived from analogy with C++'s std::char8_t and std::u8string.
The minimum supported version of Rust will always be at least three months old (stable - 2). Actual updates to the MSRV are expected to be fairly sporadic, but will happen without ceremony as soon as they are desired for any reason.