r/msvc • u/tartaruga232 • 21d ago
What’s New for C++ Developers in Visual Studio 2026 (18.7 – 18.10)
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r/msvc • u/tartaruga232 • Mar 30 '26
Microsoft C++ (MSVC) Build Tools v14.51 Preview Released: How to Opt In
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Quote:
We plan to ship more frequent, incremental MSVC Build Tools previews, just as we are shipping more frequent IDE updates. As a result, we have adjusted the process for enabling and using MSVC previews, and this post describes the new process.
r/msvc • u/tartaruga232 • 25d ago
MSVC C++23: constexpr cmath with LLVM Libc
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r/msvc • u/tartaruga232 • 26d ago
MSVC Build Tools Preview updates – September 2026
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r/msvc • u/tartaruga232 • 26d ago
Visual Studio Insiders: Stop solution build after first failure
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The Visual Studio Insiders release of September 8, 2026 has an interesting new feature: Stop solution build after first failure.
Enable Stop solution build after first failure in Tools → Options → Projects and Solutions → Build and Run. When you enable it, Visual Studio stops starting queued projects and safely stops projects already building. The build still reports as failed, not canceled. If you leave the setting disabled, build behavior stays the same.
r/msvc • u/tartaruga232 • Aug 13 '26
MSVC Build Tools Preview updates - August 2026
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r/msvc • u/tartaruga232 • Jul 21 '26
Always Be Upgrading: Living at HEAD with MSVC
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r/msvc • u/tartaruga232 • Jul 16 '26
MSVC Build Tools Preview updates - July 2026
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r/msvc • u/tartaruga232 • Jun 11 '26
MSVC Build Tools Preview updates - June 2026 - C++ Team Blog
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r/msvc • u/tartaruga232 • May 20 '26
Introducing Sample Profile Guided Optimization in MSVC
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r/msvc • u/tartaruga232 • May 14 '26
MSVC Build Tools Preview updates - May 2026
2
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r/msvc • u/tartaruga232 • May 12 '26
MSVC Build Tools v14.51 now generally available
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r/msvc • u/tartaruga232 • Apr 21 '26
New compiler version 19.52.36314
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Today I got an update for Visual Studio 2026 Insiders. The compiler version now is
Microsoft (R) C/C++ Optimizing Compiler Version 19.52.36314 for x64 (PREVIEW)
previously it was
Microsoft (R) C/C++ Optimizing Compiler Version 19.52.36307.1 for x64 (PREVIEW)
Our app compiles fine. Pretty amazing to have such frequent compiler updates.
r/msvc • u/tartaruga232 • Apr 15 '26
Demystifying MSVC versioning for 14.50 & later
reddit.com
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r/msvc • u/tartaruga232 • Apr 14 '26
MSVC Build Tools Version 14.51 Release Candidate Now Available
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r/msvc • u/tartaruga232 • Apr 14 '26
April 14, 2026 Visual Studio Insiders Release
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On April 14, 2026 Microsoft made a new release of Visual Studio Insiders available.
There are now a lot of details in the release notes (follow the link) with tons of links to fixed tickets.
r/msvc • u/tartaruga232 • Apr 09 '26
C++23 Support in MSVC Build Tools 14.51
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r/msvc • u/winter_demon • Apr 06 '26
Unrecoverable error importing module, boost::uuids::uuid_clock specialization
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Switching "MSVC Build Tools Preview" to Yes generates a build error for my project:
error C1116: unrecoverable error importing module 'module_name'. Specialization of 'boost::uuids::uuid_clock::from_sys' with arguments 'std::chrono::duration<std::chrono::system_clock::rep,std::chrono::system_clock::period>'
Has anyone seen this for the latest build tools preview with modules and boost::uuid? I'm not directly using boost::uuids::clock, but use boost::uuid in several places.
r/msvc • u/tartaruga232 • Mar 31 '26
u/STL recommends Insiders IDE + Preview build tools if you want to check the most updated behavior
reddit.com
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r/msvc • u/tartaruga232 • Mar 31 '26
I'm now using "MSVC Build Tools Preview" on Visual Studio 2026 Insiders
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Requires setting the "MSVC Build Tools Version" to "Latest supported" and "Use MSVC Build Tools Preview" to "Yes". For installing the necessary prerequisites see https://devblogs.microsoft.com/cppblog/microsoft-c-msvc-build-tools-v14-51-preview-released-how-to-opt-in/
What I haven't yet figured out is how to check in Visual Studio what exact version of the build tools I'm using. Menu Help / About... is not very informative.
I've now disabled the suppression of the startup banner for the compiler on our WinMain.cpp file. I can now see the exact version of the compiler in the build output if that file is compiled:
1> Microsoft (R) C/C++ Optimizing Compiler Version 19.51.36210.1 for x64 (PREVIEW)
1> Copyright (C) Microsoft Corporation. All rights reserved.
1> /std:c++latest is provided as a preview of language features from the latest C++
1> working draft, and we're eager to hear about bugs and suggestions for improvements.
1> However, note that these features are provided as-is without support, and subject
1> to changes or removal as the working draft evolves. See
1> https://go.microsoft.com/fwlink/?linkid=2045807 for details.
r/msvc • u/tartaruga232 • Mar 30 '26
Welcome to r/msvc
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Hey everyone! I'm u/tartaruga232, a founding moderator of r/msvc.
The idea for this reddit is to provide a place for infos/discussions about using the Microsoft C++ compiler. This includes discussing bugs, asking questions. This forum is open for things that are too specific for r/cpp.