////
Copyright 2022 Peter Dimov
Distributed under the Boost Software License, Version 1.0.
https://www.boost.org/LICENSE_1_0.txt
////

[#recent]
= Recent Changes
:idprefix: recent_

== Boost 1.81.0

Major update.

* The specializations of `boost::hash` have been removed; it now
  always calls `hash_value`.
* Support for `BOOST_HASH_NO_EXTENSIONS` has been removed. The
  extensions are always enabled.
* All standard containers are now supported. This includes
  `std::forward_list` and the unordered associative containers.
* User-defined containers (types that have `begin()` and `end()`
  member functions that return iterators) are now supported out
  of the box.
* `hash_combine` has been improved.
* The performance (and quality, as a result of the above change)
  of string hashing has been improved. `boost::hash` for strings
  now passes SMHasher in 64 bit mode.
* The documentation has been substantially revised to reflect
  the changes.