Release Notes

flat_[multimap/set] can now work as container adaptors, as proposed in P0429R1. The allocator argument is checked for size() and empty() members. If so, the argument is interpreted as the required underlying container. This means that static_vector, stable_vector and small_vector can be used now with flat associative containers.
Fixed bugs:

Experimental small_vector container.
Massive dependency reorganization. Now Boost.Container depends on very basic utilities like Boost.Core and Boost.Intrusive. Preprocessed code size have decreased considerably and compilation times have improved.
Added nth and index_of functions to containers with random-access iterators (except basic_string).
Added C++17's allocator_traits<Allocator>::is_always_equal.
Updated containers to implement new constructors as specified in 2210. Missing allocator-extended constructor for allocator-aware containers.
Fixed bugs:
Source Breaking: scoped_allocator_adaptor's propagate_on_container_copy_assignment, propagate_on_container_move_assignment and propagate_on_container_swap are no longer ::boost::integral_constant<bool, true/false> types. The dependency reorganization needed to break with those classes to avoid MPL dependencies, and interoperability with std::integral_constant was not guaranteed. Code assumming boost::true_type/boost::false_type on this will not compile. As a workaround, use the guaranteed internal ::value constant: ::boost::integral_constant<bool, scoped_allocator_adaptor<Allocator>::propagate_on_container_move_assignment::value>.

Added support for initializer_list. Contributed by Robert Matusewicz.
Fixed double destruction bugs in vector and backward expansion capable allocators.
Fixed bugs:
- Trac #10263 ("AIX 6.1 bug with sched_yield() function out of scope").
- GitHub #16: Fix iterators of incomplete type containers. Thanks to Mikael Persson.

Implemented SCARY iterators.
Fixed bugs #8269, #8473, #8892, #9009, #9064, #9092, #9108, #9166.
Added default initialization insertion functions to vector-like containers with new overloads taking default_init_t as an argument instead of const value_type &.

Added experimental static_vector class, based on Andrew Hundt's and Adam Wulkiewicz's high performance varray class.
Speed improvements in vector constructors/copy/move/swap, dispatching to memcpy when possible.
Support for BOOST_NO_EXCEPTIONS #7227.
Fixed bugs #7921, #7969, #8118, #8294, #8553, #8724.

Fixed bug #7650.
Improved vector's insertion performance.
Changed again experimental multiallocation interface for better performance (still experimental).
Added no exception support for those willing to disable exceptions in their compilers.
Fixed GCC -Wshadow warnings.
Replaced deprecated BOOST_NO_XXXX with newer BOOST_NO_CXX11_XXX macros.

Improved stable_vector's template code bloat and type safety.
Changed typedefs and reordered functions of sequence containers to improve doxygen documentation.
Fixed bugs #6615, #7139, #7215, #7232, #7269, #7439.
Implemented LWG Issue #149 (range insertion now returns an iterator) & cleaned up insertion code in most containers
Corrected aliasing errors.

Fixed bugs #6540, #6499, #6336, #6335, #6287, #6205, #4383.
Added allocator_traits support for both C++11 and C++03 compilers through an internal allocator_traits clone.

First release. Container code from Boost.Interprocess was deleted and redirected to Boost.Container via using directives.