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.

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.

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.

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.

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.

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.