On Jul 10, 2026, at 12:23 AM, Ion Gaztañaga via Boost <boost@lists.boost.org> wrote:

Available at: <https://archives.boost.io/beta/1.92.0.beta1/source/>

The SHA256 checksums are as follows:

11f8f032a73cfd91899f170341578cabc040c4473e95a056cdc919c90778fa05 boost_1_92_0_b1_rc1.tar.bz2

585e0a028cc3f1f7711842b7cbfbb5faece2f243ef57ffe7fb846e9b61e2faa5 boost_1_92_0_b1_rc1.tar.gz

290472960719ccc487e2f91ebc952c86b6d0244a9a4ec36a943d8f7485b29b3b boost_1_92_0_b1_rc1.7z

005f4903695cce4382340ea57dd53bd1f0762927de28c9fa265f6ea2c7c1ad3f boost_1_92_0_b1_rc1.zip

As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy.

I have successfully built the libraries on Mac OS 26.5.2 using Apple clang version 21.0.0 (clang-2100.1.1.101) for c++11/14/17/20/23/2C There were a lot of warnings, but the builds were successful. Logs available upon request. — Marshall

For Windows/Visual Studio, I'm not seeing any build errors, but I do see this in the configuration stage....is it meaningful? First is this message: - cxx14_return_type_deduction : yes [15] - cxx14_variable_templates : yes [15] - cxx14_type_traits : yes [15] - std_wstreambuf builds : yes [15] - long double support : yes [15] - std_wstreambuf : yes [15] error: No best alternative for /D:/RB/boost_1_92_0/libs/graph_parallel/build/boost_graph_parallel with <abi>ms <address-model>32 <architecture>x86 <asynch-exceptions>off <binary-format>pe <boost.beast.allow-deprecated>on <boost.beast.separate-compilation>on <boost.cobalt.executor>any_io_executor <boost.cobalt.pmr>std <context-impl>fcontext <coverage>off <debug-store>object <debug-symbols>off <embed-manifest-via>linker <embed-manifest>on <exception-handling>on <extern-c-nothrow>off <inlining>full <known-warnings>hide <link>static <midl-robust>yes <midl-stubless-proxy>yes <optimization>speed <os>NT <pch>on <preserve-test-targets>on <profiling>off <python-debugging>off <python>3.14 <rtti>on <runtime-debugging>off <runtime-link>shared <stdlib>native <strip>off <target-os>windows <testing.execute>on <threadapi>win32 <threading>multi <toolset-msvc:version>14.5 <toolset>msvc <variant>release <vectorize>off <visibility>hidden <warnings-as-errors>off <warnings>on <windows-api>desktop <x-deduced-platform>x86_32 matched: (empty) matched: (empty) - lzma : no [15] - zstd : no [15] - has_lzma_cputhreads builds : no [15] - cxx11_alignas : yes [15] Other than that, things look good: toolset arch compile Link Execute msvc-14.1 32 X X X msvc-14.1 64 X X X msvc-14.2 32 X X X msvc-14.2 64 X X X msvc-14.3 32 X X X msvc-14.3 64 X X X msvc-14.5 32 X X X msvc-14.5 64 X X X Compile means that the b2 command completed without errors Link means that visual studio was able to link a sample executable to a library (libboost_thread-vcXXX-mt[-gd]-1_XX.lib) generated Execute means that the linked program executed without errors. More detailed logs can be found here: https://gist.github.com/teeks99/78412f87f4df904e7737439dd4031dc9 Tom On Fri, Jul 10, 2026 at 2:24 AM Ion Gaztañaga via Boost < boost@lists.boost.org> wrote:

Available at: <https://archives.boost.io/beta/1.92.0.beta1/source/>

The SHA256 checksums are as follows:

11f8f032a73cfd91899f170341578cabc040c4473e95a056cdc919c90778fa05 boost_1_92_0_b1_rc1.tar.bz2

585e0a028cc3f1f7711842b7cbfbb5faece2f243ef57ffe7fb846e9b61e2faa5 boost_1_92_0_b1_rc1.tar.gz

290472960719ccc487e2f91ebc952c86b6d0244a9a4ec36a943d8f7485b29b3b boost_1_92_0_b1_rc1.7z

005f4903695cce4382340ea57dd53bd1f0762927de28c9fa265f6ea2c7c1ad3f boost_1_92_0_b1_rc1.zip

As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy.

-- The Release managers _______________________________________________ Boost mailing list -- boost@lists.boost.org To unsubscribe send an email to boost-leave@lists.boost.org https://lists.boost.org/mailman3/lists/boost.lists.boost.org/ Archived at: https://lists.boost.org/archives/list/boost@lists.boost.org/message/DF54PXL3...

On 10/07/2026 09:23, Ion Gaztañaga via Boost wrote:

Available at: <https://archives.boost.io/beta/1.92.0.beta1/source/>

The SHA256 checksums are as follows:

11f8f032a73cfd91899f170341578cabc040c4473e95a056cdc919c90778fa05 boost_1_92_0_b1_rc1.tar.bz2

585e0a028cc3f1f7711842b7cbfbb5faece2f243ef57ffe7fb846e9b61e2faa5 boost_1_92_0_b1_rc1.tar.gz

290472960719ccc487e2f91ebc952c86b6d0244a9a4ec36a943d8f7485b29b3b boost_1_92_0_b1_rc1.7z

005f4903695cce4382340ea57dd53bd1f0762927de28c9fa265f6ea2c7c1ad3f boost_1_92_0_b1_rc1.zip

As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy.

-- The Release managers _______________________________________________ Boost mailing list -- boost@lists.boost.org To unsubscribe send an email to boost-leave@lists.boost.org https://lists.boost.org/mailman3/lists/boost.lists.boost.org/ Archived at: https://lists.boost.org/archives/list/boost@lists.boost.org/message/DF54PXL3...

When trying to build it within a docker container it fails at my place. Attached my build script and Dockerfile so it can easily be reproduced. The error: + ./b2 variant=release cxxstd=23 stdlib=libc++ -j8 Performing configuration checks     - default address-model    : 64-bit [1]     - default architecture     : x86 [1] Building the Boost C++ Libraries. error: Unable to find file or target named error:  '/boost/boost_1_92_0/libs/config/checks//cxx11_variadic_templates' error: referred to from project at error:     '/boost/boost_1_92_0/libs/charconv/build' error: could not resolve project reference '/boost/boost_1_92_0/libs/config/checks' When running without docker everything goes fine and compiles cleanly. Is this maillinglist the correct place to report this issue? Regards, Matthijs Möhlmann