部分更新内容：
Atomic:
Added the static constant atomic
Improved support of Oracle Studio on x86 targets.
Container: Fixed bugs:
"flat_map fails to compile if included after type_traits is instantiated under gcc".
"Null reference in pair.hpp triggers runtime warning with -fsanitize=undefined".
Fix parameter types in copy_move_algo.hpp: iterator_traits::difference_type -> allocator_traits::size_type.
Avoid -Wunreachable-code in do_allocate().
Context:
Xcode (Apple clang) and thread_local
context does not preserve fpu context on ios arm64 devices (fixed for other architecturs too)
fpu registers not preserved with O2 optimizations in Visual Studio (fixed for other architecturs too)
building boost on arm64 causes error: unknown directive
reduced signatur for ontop-functions
unit-test for private fcontext-API
performance-test for ucontext and fcontext fixed
软件详情：http://www.boost.org/users/history/version_1_63_0.html
下载地址：https://sourceforge.net/projects/boost/files/boost/1.63.0/boost_1_63_0.tar.bz2
来自:开源中国社区