Method is_stable

rust/src/lib.rs:830–832

(&self, browser_version: &str)

    }

    fn is_stable(&self, browser_version: &str) -> bool {
        browser_version.eq_ignore_ascii_case(STABLE)
    }

    fn is_browser_version_stable(&self) -> bool {
        self.is_stable(self.get_browser_version())