MSVC Compiler Language Updates in Visual Studio 2022 version 17.12

Table of Contents
Introduction
In Visual Studio 2022 version 17.12, the MSVC compiler team focused on addressing bugs reported through Developer Community. They also implemented a C++23 feature to enable multidimensional subscript operator.
C++23 Features
- P2128R6 Multidimensional subscript operator
Developer Community Feedback
The MSVC compiler team acknowledged the feedback from the Developer Community and expressed gratitude for the patience and understanding of the users. They aim to address reported issues more efficiently in future releases.
Fixes
The release of Visual Studio 2022 version 17.12 includes a significant number of bug fixes related to various aspects of C++ language handling and compiler behavior. Some of the key fixes include:
- Resolving issues with copy elision
- Access to invalid memory when using initializer list in a loop
- Correcting signed/unsigned mismatch errors
- Fixing issues with constexpr functions
- Addressing errors with std::format and std::mdspan
- Improving compiler stability with C++ modules and coroutines
- Resolving internal compiler errors and incorrect evaluations in various scenarios
For a full list of bug fixes, refer to the official release notes or Developer Community for details.
Feel free to provide feedback or report any issues through email at visualcpp@microsoft.com or on Twitter @visualc. Your input is valuable for improving the MSVC compiler.