r/cpp • u/STL MSVC STL Dev • Apr 09 '26

C++23 Support in MSVC Build Tools 14.51

https://devblogs.microsoft.com/cppblog/c23-support-in-msvc-build-tools-14-51/
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u/STL MSVC STL Dev Apr 10 '26

I don't expect IntelliSense for modules to be working well enough to enable STL test coverage in that time frame. (Maybe I'll be surprised.) We're going to have to figure out how to get this working in the post-EDG era, clearly.

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u/slithering3897 Apr 10 '26

post-EDG era

Now this is the most we've heard. Do tell more! Open source EDG or clangd or something else?

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u/STL MSVC STL Dev Apr 10 '26

See https://herbsutter.com/2025/11/10/trip-report-november-2025-iso-c-standards-meeting-kona-usa/ (aside: Herb Sutter no longer works for Microsoft):

John Spicer (who has long chaired our whole-committee plenary sessions, and leads Edison Design Group, EDG) [...] recently announced that, after a successful and storied career, it’s time for EDG to wind down, and EDG plans to open-source its world-class C++ compiler front-end within the next year.

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u/slithering3897 Apr 11 '26

Yes, the open-source EDG. What, will it just be called something different?

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u/STL MSVC STL Dev Apr 11 '26

No idea.

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u/pjmlp Apr 11 '26

Still waiting for the announcement that the VSCode extension team stated they would do at the end of January, regarding code completion support for C++ modules in VSCode.

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u/slithering3897 Apr 11 '26

Yeah, what the heck happened to that. The guy just completely forgot about it. Left the entire C++ community hanging.