/// the buffer will not be flushed, allowing for more efficient seeks.
/// This method does not return the location of the underlying reader, so the caller
/// must track this information themselves if it is required.
- #[unstable(feature = "bufreader_seek_relative", issue = "31100")]
+ #[stable(feature = "bufreader_seek_relative", since = "1.53.0")]
pub fn seek_relative(&mut self, offset: i64) -> io::Result<()> {
let pos = self.pos as u64;
if offset < 0 {