Version 1.84.0
December 13th, 2023 23:54 GMT
Documentation
Updated
default target Windows version
Boost.WinAPI, a library that is used internally by other Boost libraries for
defining Windows SDK components, has been updated to target Windows 10 API
by default, where possible. This means that Boost libraries will target Windows
10 by default and may not run on older Windows versions. This includes the
pre-built binaries that are distributed by Boost.
The affected libraries include:
-
Boost.Atomic
-
Boost.Beast
-
Boost.Chrono
-
Boost.DateTime
-
Boost.DLL
-
Boost.Filesystem
-
Boost.Interprocess
-
Boost.Log
-
Boost.Pool
-
Boost.Process
-
Boost.System
-
Boost.Stacktrace
-
Boost.Thread
-
Boost.UUID
as well as libraries that depend on the above.
Users are able to change the default by defining BOOST_USE_WINAPI_VERSION
or _WIN32_WINNT when building
and using Boost to the required version number. For example, to build Boost
targeting Windows 7 one could use a command line like this:
b2 variant=release define=BOOST_USE_WINAPI_VERSION=0x0601 stage
Note, however, that individual libraries may have their own requirements on
the minimum supported Windows version.
The list of Windows API version numbers can be seen on this
page.
New Libraries
- Cobalt:
- Basic algorithms and types
for C++20 coroutines, from Klemens Morgenstern.
- Redis:
- async client library
built on top of Boost.Asio, from Marcelo Zimbres Silva.
Updated Libraries
-
Any:
-
C++03 is no longer supported PR#26.
-
Fixed reference documentation generation. Now it is not overwritten
by Boost.PFR reference. Thanks to Peter Dimov for the debugging.
-
Asio:
-
Changed to require C++11 as the minimum language standard. C++03
is no longer supported.
-
Removed deprecated functionality from the
boost::asio::execution
namespace.
-
Removed deprecated invocation and allocation hooks.
-
Added
try_send_via_dispatch
and try_send_n_via_dispatch
functions to channels.
-
Added compatibility between Asio's placeholders and
std::bind.
-
Improved C++11 support for channels that have multiple completion
signatures.
-
Fixed compatibility between channel asynchronous operations and
any_completion_handler.
-
Fixed compatibility between
any_completion_handler
and compilation using BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT.
-
Added missing equality operators for comparing mixed executor property
types belonging to the same category.
-
Fixed an issue where
spawn-based
stackful coroutines would terminate the program when used with asynchronous
operations that have a completion signature starting with std::exception_ptr.
-
Fixed a crash that may occur when attempting to access a default-constructed
any_completion_handler
object's associators.
-
Fixed
ssl::stream<>
class's async_handshake
operation so that it works with a defaulted completion token.
-
Updated all examples to use C++11 as the minimum language standard.
-
Atomic:
-
C++03 is no longer supported, the minimum required language version
is C++11.
-
Added support for x87 extended double with reduced precision, which
is used on FreeBSD and OpenBSD. (#14)
-
Support for Windows versions older than Windows 10 is deprecated
and will be removed in Boost 1.87.
-
Beast:
-
Support for
immediate_executor.
-
Remove deprecated allocation and invocation hooks.
-
Use the explicit type std::size_t when completing transfer_op.
-
Replaced
BOOST_ASIO_INITFN_RESULT_TYPE
with BOOST_ASIO_INITFN_AUTO_RES.
-
server-flex-awaitable example resets parser.
-
Corrected the
websocket::stream::async_ping/pong
handler requirement.
-
Update documentation for
websocket::stream::async_write_some.
-
Chrono:
-
C++03 is no longer supported.
-
ContainerHash:
-
C++03 is no longer supported.
-
Conversion:
-
C++03 is no longer supported PR#27.
-
Core:
-
boost::swap utility function has been
renamed to boost::core::invoke_swap
to avoid forming a potential infinite recursion when the arguments
are not swappable. The new function is defined in boost/core/invoke_swap.hpp
and is functionally equivalent to boost::swap.
The old boost::swap name is preserved for backward
compatibility but deprecated and will be removed in a future release.
Its noexcept specification
has been removed to avoid compile errors caused by compile-time recursion.
BOOST_ALLOW_DEPRECATED_SYMBOLS
or BOOST_ALLOW_DEPRECATED
can be defined to suppress deprecation warnings for the transition
period. (#148)
-
Headers
boost/swap.hpp, boost/utility/swap.hpp
and boost/core/swap.hpp are deprecated and will be
removed. Please, switch to boost/core/invoke_swap.hpp.
BOOST_ALLOW_DEPRECATED_HEADERS
or BOOST_ALLOW_DEPRECATED
can be defined to suppress deprecation warnings.
-
CRC:
-
C++03 support is deprecated and will be removed in release 1.86.
-
DLL:
-
C++03 is no longer supported PR#66.
-
Endian:
-
C++03 is no longer supported.
-
Filesystem:
-
As was announced in Boost 1.82.0, C++03 is no longer supported. A
C++11 or later compiler is required.
-
Fixed that some
directory_entry
observers taking error_code& ec
argument did not clear the error code on successful return. (#291)
-
On Windows, improved robustness of date and time conversion and added
support for dates before January 1, 1970. (#293)
-
Removed support for Windows CE that was deprecated since Boost.Filesystem
1.79.0.
-
Removed
boost/filesystem/string_file.hpp header. The header was deprecated
since Boost.Filesystem 1.79.0.
-
Deprecated: Support for Windows
versions older than Windows 10 is deprecated and will be removed
in Boost 1.87.
-
Geometry:
-
Solved issues
-
#1138 Fix difference of two polygons
-
#1183 Fix for union_ incomplete result polygon
-
#1184 Fix for intersection
-
#1186 Fix for union_ improper inner ring assignment
-
Various fixes of errors and warnings
-
Heap:
-
C++03 support is deprecated and will be removed in release 1.86.
New requirement will be C++14.
-
JSON:
-
Implement parsing directly into user types.
-
Add conversion categories for optionals and variants.
-
Relax iterator requirements for constructors from iterator pairs.
-
Fix reading beyond input buffer.
-
Fix inconsistent choice of init list constructor.
-
LEAF:
-
class result<T> marked nodiscard.
-
Added member typedef result<T>::value_type.
-
verbose_diagnostic_info defers conversion to string until an error
handling scope is reached.
-
Improved support for embedded development.
-
Improved Visual Studio 2015 compatibility (thanks godmaycrying).
-
Minor bug fixes an improvements.
-
Dropped support for GCC 4.8 and 4.9.
-
LexicalCast:
-
C++03 is no longer supported PR#62.
-
Fixed -Wdeprecated-copy-with-dtor warnings with clang. Thanks to
Romain Geissler
for the PR PR#59!
-
Dropped dependency on Boost.Range PR#63.
-
Locale:
-
to_title for the
WinAPI backend returns the string unchanged instead of an empty string
-
Improved support for
char8_t
and std::u8string
-
Fix off-by-one error when using negative times PR#198
-
Fix escape-handling of curly braces in format strings #194
-
Fix some build errors and warnings, notably one on MSVC, see #189
-
Lockfree:
-
C++03 support is deprecated and will be removed in release 1.86.
New requirement will be C++14.
-
Log:
-
C++03 is no longer supported. A C++11 or later compiler is required.
-
When built with C++11 compilers that are conforming enough for Boost.Regex
v5 to be used, Boost.Log no longer links with Boost.Regex prebuilt
library, since Boost.Regex v5 is header-only.
-
Support for Windows versions older than Windows 10 is deprecated
and will be removed in Boost 1.87.
-
Math:
-
Improve ccmath error detection.
-
Remove use of deprecated std::numeric_limits<>::has_denorm,
see 1028.
-
Correct non-convergence bug in non-central-t distribution, see 1035.
-
Adjust Bessel function approximation to [sub 1]F[sub 1] to avoid
taking tgamma at a negative integer, see 1034.
-
Avoid spurious overflow and divide by zero in ibeta, see 1006.
-
Improve accuracy when using Sterling's approximation to tgamma, completes
work started in 1007.
-
Fix inverse_discrete_quantile for large initial guesses, see 1007.
-
Improve Newton root finding, see 1000.
-
Fix median_absolute_deviation for non-zero centre, see 997.
-
Fix up cstdfloat.hpp for gcc-14.
-
Update to work for the new types declared in <stdfloat>.
-
Change hypergeometric_distribution to use 64 rather than 32 bit integers
to avoid unnecessary overflow and restrictions on use.
-
Multi-index Containers:
-
Fixed a serialization-related compile-time bug in old compilers without
ADL support (issue #70).
-
Multiprecision:
-
Change
boost::array to std::array
in the tests, fixes 567.
-
Correct cpp_int::eval_convert_to to be noexcept, fixes 553.
-
Make sure that changing the global precision, also changes the current
thread precision.
-
Fix rational_adaptor construction bug, fixes 540.
-
MySQL:
-
Added
connection::reset_connection
and connection::async_reset_connection. These functions
clean session state (including prepared statements, variables, locks
and more) without closing and re-opening the connection.
-
Added error codes introduced in MySQL server v8.1.0.
-
Added fuzz testing for the deserialization functions.
-
PFR:
-
Big new feature: field names reflection.
Added new
constexpr
boost::pfr::get_name<N, T>()
function that returns a std::string_view
with a name of field at index N
of an aggregate T.
Requires C++20. BOOST_PFR_CORE_NAME_ENABLED
is defined to 1 if the functionality is available. Many thanks to
Denis Mikhailov,
Bela Schaum and
X-Ryl669 for the
PR PR#129
and implementation ideas.
-
for_each_field()
is now constexpr for
C++17. Many thanks to Alexander
Karatarakis for the PR PR#134.
-
Predef:
-
Version 1.15.0
-
Add detection of Microsoft STL (from Henrik Gaßmann).
-
Random:
-
C++03 is no longer supported.
-
Fixed overflows in tests using Boost.Multiprecision
-
Ratio:
-
C++03 is no longer supported.
-
Support for
BOOST_RATIO_EXTENSIONS
has been removed. Ratio is now implemented in terms of the standard
<ratio> header.
-
Stacktrace:
-
System:
-
Added support for
result<U&, E>.
-
Added
operator|
for result.
-
Added
operator&
for result.
-
Added
operator&=
for result.
-
Test:
-
C++03 is no longer supported.
-
Fixed useage of PRIxPTR for glibc 2.2 - 2.17 PR#392
-
Fixed MSVC warning C5263: calling 'std::move' on a temporary object
prevents copy elision PR#390
-
Thread:
-
C++03 is no longer supported.
-
TypeIndex:
-
C++03 is no longer supported.
-
BOOST_TYPE_INDEX_REGISTER_RUNTIME_CLASS((A)(B)(C)(D)) changed syntax to BOOST_TYPE_INDEX_REGISTER_RUNTIME_CLASS(A, B, C, D).
-
Dropped Boost.PP dependency.
-
TypeOf:
-
C++03 is no longer supported.
-
Unordered:
-
Major update.
-
Added
boost::concurrent_flat_set.
-
Added
[c]visit_while
operations to concurrent containers, with serial and parallel variants.
-
Added efficient move construction of
boost::unordered_flat_(map|set) from boost::concurrent_flat_(map|set) and vice versa.
-
Added bulk visitation to concurrent containers for increased lookup
performance.
-
Added debug-mode mechanisms for detecting illegal reentrancies into
a concurrent container from user code.
-
Added Boost.Serialization support to all containers and their (non-local)
iterator types.
-
Added support for fancy pointers to open-addressing and concurrent
containers. This enables scenarios like the use of Boost.Interprocess
allocators to construct containers in shared memory.
-
Fixed bug in member of pointer operator for local iterators of closed-addressing
containers (PR#221, credit goes to GitHub user vslashg
for finding and fixing this issue).
-
Starting with this release,
boost::unordered_[multi]set
and boost::unordered_[multi]map only work with C++11 onwards.
-
variant:
-
C++03 is no longer supported PR#107.
-
Dropped Boost.Move and Boost.Bind dependencies.
-
Wave:
Fixed bugs:
-
#188: Segmentation fault when "#pragma\n" is encountered
Compilers Tested
Boost's primary test compilers are:
-
Linux:
-
Clang, C++03: 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 12.0.0, 13.0.0, 14.0.0,
15.0.0
-
Clang, C++11: 3.4, 11.0.0, 13.0.0, 14.0.0, 15.0.0
-
Clang, C++14: 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 5.0, 12.0.0, 13.0.0,
14.0.0, 15.0.0
-
Clang, C++17: 6.0.1, 7.0.0, 8.0.0, 9.0.0, 10.0.0, 11.0.0, 12.0.0,
13.0.0, 14.0.0, 15.0.0
-
Clang, C++20: 11.0.0, 12.0.0, 13.0.0, 14.0.0, 15.0.0
-
GCC, C++03: 4.6.3, 11, 12
-
GCC, C++11: 4.7.3, 4.8.5, 11, 12
-
GCC, C++14: 5.4.0, 6.4.0, 7.3.0, 8.0.1, 9.1.0, 11, 12
-
GCC, C++17: 7.3.0, 8.0.1, 9.1.0, 11, 12
-
GCC, C++20: 8.0.1, 9.1.0, 10, 11, 12
-
OS X:
-
Apple Clang, C++03: 11.0.3
-
Apple Clang, C++11: 11.0.3
-
Apple Clang, C++14: 11.0.3
-
Apple Clang, C++17: 11.0.3
-
Apple Clang, C++20: 11.0.3
-
Windows:
-
Visual C++: 10.0, 11.0, 12.0, 14.0, 14.1, 14.2, 14.3
Acknowledgements
Marshall Clow and Glen Fernandes managed this release.
