In summary:

> The most significant change in this release is not to the language or standard libraries, but rather an enhancement to tooling support for Clippy.

The following methods were stabilized.

   Arguments::as_str
   Peekable::next_if_eq
   Peekable::next_if
   char::MAX
   char::REPLACEMENT_CHARACTER
   char::UNICODE_VERSION
   char::decode_utf16
   char::from_digit
   char::from_u32_unchecked
   char::from_u32
   slice::partition_point
   str::rsplit_once
   str::split_once

The following previously stable APIs are now const.

   char::len_utf8
   char::len_utf16
   char::to_ascii_uppercase
   char::to_ascii_lowercase
   char::eq_ignore_ascii_case
   u8::to_ascii_uppercase
   u8::to_ascii_lowercase
   u8::eq_ignore_ascii_case

There you go. Enjoy!