It has been some time since we have provided an update on MSVC progress, and this one comes with the latest major update to our IDE: Visual Studio 2026 version 18.0<\/strong>. This version of Visual Studio ships with the MSVC Build Tools version 14.50<\/strong>, which includes version 19.50 of the MSVC compiler. You can try out the improvements by downloading the Insiders release<\/a>. Also, if you want to track updates in the Standard Library, check out the STL Changelog<\/a>, which is regularly updated. Let\u2019s jump right into the updates!<\/p>\n As C++ standards progress in MSVC, you can follow along using the cppreference compiler support table<\/a> and help us identify what we should be working on next!<\/p>\nC++23 Features<\/h2>\n
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\/\/ Prior to P0849R8:\r\nvoid pop_front_alike(auto& x) {\r\n using T = std::decay_t<decltype(x.front())>;\r\n std::erase(x, T(x.front()));\r\n}\r\n\r\n\/\/ After P0849R8:\r\nvoid pop_front_alike(auto& x) {\r\n std::erase(x, auto(x.front()));\r\n}\r\n<\/code><\/pre>\n\n
#warning<\/code><\/li>\n<\/ul>\n\/\/ Valid prior to C++23.\r\n#error bad configuration...\r\n\/\/ Valid after C++23.\r\n#warning configuration deprecated...\r\n<\/code><\/pre>\n\n
struct S {\r\n S& operator=(this S&, const S&) = default; \/\/ Valid after CWG2586.\r\n auto operator<=>(this const S&, const S&) = default; \/\/ Valid after CWG2586.\r\n};\r\n<\/code><\/pre>\n\n
template <typename T, size_t N>\r\nconstexpr size_t array_size(T (&)[N]) {\r\n return N;\r\n}\r\n\r\nvoid check(int const (¶m)[3]) {\r\n constexpr auto s2 = array_size(param); \/\/ Previously ill-formed, now accepted as a constant expression after P2280R4.\r\n}\r\n<\/code><\/pre>\nSmaller Conformance Updates<\/h2>\n
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Compiler Improvements in v14.50<\/h2>\n
C++\/CLI<\/h3>\n
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Diagnostics<\/h3>\n
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constexpr<\/code><\/h3>\n\n
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consteval<\/code> functions in an if consteval<\/code> would sometimes produce a compiler error.\n\n
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C++ Modules<\/h3>\n
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#pragma warning(disable:...)<\/code> when the pragma appeared in a module or header unit.\n\n
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Conformance<\/h3>\n
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Reliability<\/h3>\n
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if constexpr<\/code> with empty condition.\n\n
if constexpr<\/code><\/a><\/li>\n<\/ul>\n<\/li>\n\n