Log message:
boost: updated to 1.91.0

1.91.0

General Notes
StaticAssert has been merged into Config. This includes code, tests and
documentation. For backward compatibility git submodule, CMake and b2 targets
of StaticAssert are still available; the targets simply introduce a dependency
on Config. Eventually, the submodule and targets will be removed. Users are
recommended to update their dependencies on StaticAssert to replace it with
Config. No C++ code modifications are necessary. Most Boost libraries have been
updated accordingly.

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Log message:
boost: updated to 1.90.0

1.90.0

New Libraries
  OpenMethod:
  * Open-(multi-)methods in C++17 and above, from Jean-Louis Leroy.

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Log message:
boost-build: fix PLIST

Log message:
boost: updated to 1.89.0

1.89.0

New Libraries
Bloom:
filters, from Joaquín M López Muñoz.

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Log message:
boost: updated to 1.87.0

1.87.0
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Log message:
boost-build: Bump DEPENDS requirement.

Almost certainly missed during meta-pkgs/boost update.

Log message:
boost: updated to 1.85.0

Version 1.85.0

New Libraries
Charconv:
A high quality implementation of <charconv> in C++11, from Matt Borland.
Scope:
A collection of scope guard utilities and a unique_resource wrapper, from Andrey \ 
Semashev.
Updated Libraries
Asio:
Fixed the async_result primary template's concept checking to correctly handle \ 
lvalue-qualified completion signatures.
Fixed some compile errors that could arise when using the bind_allocator, \ 
bind_executor, bind_immediate_executor and bind_cancellation_slot completion \ 
token adapters to adapt each other.
Changed the experimental::ranged_parallel_group operation so that it moves the \ 
completion_order vector when invoking the completion handler.
Fixed some warnings about deprecated implicit copy constructors on \ 
ip::basic_resolver_query, io_context::strand, and coroutine.
Updated the version specification used to initialise Winsock.
Fixed co_spawn to correctly propagate exceptions resulting from cancellation to \ 
the completion handler.
Added calls to std::launder to fix undefined behaviour in awaitable<> \ 
internal storage.
Added missing handling of the file_base::append flag in the Windows \ 
implementation of file support.
Updated the socket and descriptor implementations to add more cases where they \ 
will fall back to fcntl if a call to ioctl fails.
Fixed the boost/asio/experimental/parallel_group.hpp header so that it is \ 
self-contained.
Fixed a compile error that occurred when channels and experimental::coro were \ 
both used in the same translation unit.
Added missing CancellationSlot type requirements to documentation.
Fixed the documentation hyperlinks for the deduced return types of asynchronous \ 
operations' initiating functions.
Other minor documentation updates.
Atomic:
Added support for pause instruction on RISC-V.
Beast:
API Changes
The status code list has been updated to conform with the IANA registry.
Fixes
Unreachable code warning in buffers_cat.hpp.
Connection error handling in websocker_server_awaitable example.
Concurrent calls to async_write in advanced server examples.
zlib name conflicts with minizip.
host string should be updated after SSL_set_tlsext_host_name().
Improvements
asio::associator is specialized for bind_wrapper and bind_front_wrapper.
Add non-allocating overload for error category message function.
Documentation
Specifies when calling http::message::prepare_payload() is optional.
Operations affected by basic_stream::expires_after().
teardown() and async_teardown() are customization points.
Moving or copying http::serializer after first usage is undefined behaviour.
websocket::permessage_deflate should be configured before performing the \ 
WebSocket handshake.
bytes_transferred in http reads operations reports the number of bytes consumed \ 
by the HTTP parser.
Acknowledgements
Emile Cormier, JohannesWilde, yhzx233
Bimap:
Fixed heterogeneous lookup for side collections
Bind:
C++03 is no longer supported; a C++11 compiler is required. (This includes GCC \ 
4.7 or later, and MSVC 12.0 (VS 2013) or later.)
Conversion:
Removed outdated mentions of boost::lexical_cast that is not part of the library \ 
any more. Thanks to Danil Sidoruk for the PR
Core:
Added a new boost/core/functor.hpp header with a functor class template for \ 
wrapping a raw function into a function object class.
Changed null_deleter, fclose_deleter and checked deleter definitions so that \ 
they don't bring namespace boost into argument-dependent lookup. Users may need \ 
to either explicitly qualify the namespace of the called function or add a \ 
using-declaration.
Filesystem:
path::generic_path and path::generic_string methods now remove duplicate \ 
directory separators in the returned paths.
v4: path::generic_path, path::generic_string, path::make_preferred and \ 
path::lexically_normal avoid converting between backslashes and forward slashes \ 
in path root names. For example, on Windows, \ 
path("\\\\\\\\?\\\\c:\\\\foo").generic_string() now returns \ 
"\\?\c:/foo" instead of "//?/c:/foo". Similarly, \ 
path("\\\\\\\\host/share/foo/..").lexically_normal() now returns \ 
"\\host\share".
v4: equivalent now indicates error if either one of the paths doesn't exist.
v4: absolute now returns a path with a trailing directory separator when the \ 
input path has an empty relative_path().
Added a unique_path overload taking a single error_code& ec argument. The \ 
overload generates a unique path using the default path model.
weakly_canonical now produces an absolute path if the input path is relative and \ 
contains no elements that exist in the filesystem.
Added a new copy_options::ignore_attribute_errors option for copy_file and copy \ 
operations. The new option allows to ignore possible errors while copying file \ 
attributes.
On Linux, copy_file backends based on sendfile and copy_file_range system calls \ 
will attempt to preallocate storage for the target file. This may reduce \ 
filesystem fragmentation and provide early error indication if there is not \ 
enough free space. Not all filesystems support this feature; file copying \ 
proceeds if storage preallocation is not supported.
On POSIX systems that support fdopendir, openat and related APIs defined in \ 
POSIX.1-2008, as well as on Windows, recursive_directory_iterator now uses file \ 
descriptors/handles instead of paths to query the file statuses and open nested \ 
directories during iteration. This makes directory iteration more resilient to \ 
concurrent modifications of the filesystem.
Removed APIs that were previously declared deprecated. In particular, path and \ 
recursive_directory_iterator member functions, is_regular, copy_directory, \ 
symbolic_link_exists, complete, copy_option, symlink_option, as well as \ 
boost/filesystem/convenience.hpp and boost/filesystem/path_traits.hpp headers \ 
were removed. Possible replacements for the removed components are mentioned in \ 
the documentation.
Support for path construction, assignment and appending from container types \ 
(e.g. std::vector<char>) is now disabled by default. Users can still \ 
enable this functionality by defining BOOST_FILESYSTEM_DEPRECATED. This \ 
functionality remains deprecated and will be completely removed in a future \ 
release.
Function:
C++03 is no longer supported; a C++11 compiler is required. (This includes GCC \ 
4.7 or later, and MSVC 12.0 (VS 2013) or later.)
Geometry:
Improvements
Use if constexpr macro instead of condition macro
Pass strategy to sort by side
Add cmake files for clang/mac/darwin/arm64
Solved issues
Fix invalid set operations for CCW polygons
Fix compilation error with CUDA NVCC compiler
Fix buffer of linestring returning incorrect inner polygon
Fix union operation perturbing a point and returning wrong result
Fix union producing self intersections
Fix buffer issue by setting turns in closed clusters as non traversable
Fix compilation of converter and is_base_of
Various fixes of errors and warnings
Iterator:
Support for C++03 is deprecated and will be removed in a future release.
JSON:
Boost.Endian is now used to deal with endianness.
Aliases to Boost.System and Boost.Container components are deprecated and will \ 
be completely removed in 1.87.0.
Conversion of described classes supports private members.
Rvalue reference overload for visit.
Add conversion support for path-like types.
Parsing into described classes correctly considers inherited members.
Conversion of self-referential sequences is disabled.
Fixed reference handling in visit.
LEAF:
New API for transporting of error objects and exceptions between threads: \ 
try_capture_all.
result<T> able to transport exceptions captured via try_capture_all.
result<T> transporting dynamically captured error objects with improved \ 
efficiency.
Old make_shared_context/capture APIs are deprecated, will be removed in the next \ 
release.
Removed support for transporting of dynamicaly captured error objects in exceptions.
LexicalCast:
Significant rewrite of the internal logic to separate optimized and C++ Standard \ 
Library IO-based streams:
C++ Standard Library based streams now constructed in less cases leading to \ 
better performance;
less template instantiations and simpler code;
always use std::char_traits (do not use custom traits from input/output types as \ 
it leads to linktime or runtime errors);
fixed missuse of forward declared boost::array
support for volatile input types was dropped, following the C++ Standard Library \ 
trend.
Optimized conversions from std::basic_string_view and boost::basic_string_view.
Dropped dependency on Boost.NumericConversion and Boost.MPL. Fixed some cases of \ 
converting floting point types to arithmetics.
The library now compiles and works fine with -fno-sanitize-recover=integer.
Locale:
Fix linker issues due to missing typeinfo for char8_t in C++20 mode
Fix IConv compile flags when using ICU that has a bundled IConv
collator now throws on construction, if at all, as documented
collator no longer derives from std::collator to avoid possible type confusing \ 
when it isn't available for the current backend
Throw an exception when a faulty IConv library is detected (e.g. on some MacOS \ 
versions) instead of looping indefinitely
Reduce resolution of date_time to seconds as milliseconds where not easily \ 
available causing confusion
Math:
Added a new collection of optimization algorithms:
Differential Evolution
JSO
Random Search
CMA-ES
Fix Divide by 0 warning in NCF survival function
Fix constexpr depth limits of ccmath::floor/ceil fail for large arguments
Improve accuracy of quartic_roots
Fix cstdfloat numeric limits detection macro for libstdc++14
Fix for MSVC UCRT defining _Complex_I in complex.h when using C++14
Improve cstdfloat iostream
Fix redefnition of Boost.Config macros when using standalone mode in a \ 
non-standalone environment
Significant improvements to code coverage with associated bug fixes
MSM:
Major Update. Backend update (back11). Requires C++ 11. The documentation now \ 
uses it as default.
Big new feature. New front-end (PlantUML). Requires C++ 20
Various Bugfixes (compiler errors and warnings, priority of deferred events)
Multi-index Containers:
Fixed documentation errors.
Multiprecision:
Fix deprecation warnings from C++23 <limits>
Fix cpp_bin_float for small bit counts
Fix -Wpessimizing-move
Add covecov runs
Reduce truncation in cpp_dec_float multiplication
Fix complex_adaptor to match precision requirements
Fix for breaking changes in tommath
Fix for types that can be converted to number participting in arithmetic \ 
operator overloads
MySQL:
Breaking change: Boost.MySQL now requires linking to the new Boost.Charconv \ 
compiled library. This addresses a locale-dependency problem, increases \ 
efficiency, and powers the new client-side SQL formatting feature.
Added experimental support for connection pools, which allows re-using sessions \ 
and provides built-in reconnection and error handling.
Added experimental support for type-erased connections (any_connection class). \ 
any_connection is not a template and features simpler connection establishment \ 
and reconnection semantics.
Added experimental support for client-side SQL formatting functions (format_sql \ 
and format_sql_to). These allow securely composing queries client-side, which \ 
enables patterns like batch inserts, dynamic filters or PATCH-like updates.
Fixed a performance issue affecting close_statement and async_close_statement \ 
that could cause significant delays in application code.
Added support for building with BOOST_ASIO_USE_TS_EXECUTOR_AS_DEFAULT.
The deprecated execution interface (connection::query, connection::start_query, \ 
connection::execute_statement, connection::start_statement_execution and their \ 
async counterparts) now triggers warnings, as it's scheduled for removal in \ 
Boost 1.86.
Fixed a bug that caused some error messages to be truncated.
Warning cleanup. Builds are now clean from warnings when building with -Wall and \ 
-Wextra.
All field_view constructors are now stable.
The library internals have been rewritten using a sans-io approach to reduce \ 
complexity.
Odeint:
Breaking change: The library now explicitly requires C++14 instead of implicitly \ 
by including Boost.Math
Fix compatibility with Thrust 1.10.0
Removed C++03 Boost components:
Array
Bind
Function
Static_assert
PFR:
boost::pfr::get_name now can work with local types on some compilers. Thanks to \ 
Bela Schaum for the PR
Removed unused implementation details. Thanks to Denis Mikhailov for the PR
Allow throwing exceptions from boost::pfr::structure_to_tuple. Thanks to Denis \ 
Mikhailov for the bug report.
Field reflection trick is now described in the docs.
Random:
Added splitmix64 PRNG
System:
C++03 is no longer supported; a C++11 compiler is required. (This includes GCC \ 
4.8 or later, and MSVC 14.0 (VS 2015) or later.)
The deprecated header boost/system/cygwin_error.hpp has been removed.
The original and obsolete (32 bit) MinGW is no longer supported. MinGW-w64 (both \ 
64 and 32 bit) is still supported.
operator& now works for result<void> (by way of taking a nullary function.)
Added operator|= for result.
Stacktrace:
Big new feature: stacktrace from arbitrary exception. On some POSIX platforms \ 
std::stacktrace::from_current_exception() now returns the stacktrace of the \ 
current exception object as if the stacktrace was captures at the point of \ 
throwing the exception. Many thanks to Andrei Nekrashevich for prototyping the \ 
idea in libsfe.
Fixed memory consumption on Windows with boost_stacktrace_windbg.
Fixed library build with non hidden visibility.
Added a separate section on async signal safety to the docs.
STLInterfaces:
Change the behavior of iterator_interface for input iterators in C++20 and \ 
later, to more closely follow the C++20 concepts.
Remove hidden friends from iterator_interface to fix errors about concepts being \ 
redefined with different constraints.
Add a new v3 inline namespace, containing a new iterator_interface based on \ 
deducing this instead of CRTP (C++23 and later).
Add an rvalue-qualified overload of closure::operator(), to prevent dangling \ 
temporaries.
Test:
Respect library-spcific _NO_LIB macros
Supress MSVC C4702 from __builtin_unreachable() on intentionally unreachable code
Fix boost::function streaming error
Unordered:
Optimized emplace() for a value_type or init_type (if applicable) argument to \ 
bypass creating an intermediate object. The argument is already the same type as \ 
the would-be intermediate object.
Optimized emplace() for k,v arguments on map containers to delay constructing \ 
the object until it is certain that an element should be inserted. This \ 
optimization happens when the map’s key_type is move constructible or when the \ 
k argument is a key_type.
Fixed support for allocators with explicit copy constructors
Fixed bug in the const version of unordered_multimap::find(k, hash, eq)
Variant:
Removed more of the pre-C++11 macro and workarounds.
Wave:
Fixed bugs:
Emitted pragmas lack terminating newline
YYMARKER not updated when fill called on BOOST_WAVE_BSIZE boundary
Updated Tools
Build:
Includes release of B2 version 5.1.0.

Log message:
boost: updated to 1.84.0

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