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1 New language featureshttps://en.cppreference.com/cpp/23#New_language_features
2 New library featureshttps://en.cppreference.com/cpp/23#New_library_features
2.1 New moduleshttps://en.cppreference.com/cpp/23#New_modules
2.2 New headershttps://en.cppreference.com/cpp/23#New_headers
2.3 Library featureshttps://en.cppreference.com/cpp/23#Library_features
2.3.1 General Utilitieshttps://en.cppreference.com/cpp/23#General_Utilities
2.3.2 Coroutine Libraryhttps://en.cppreference.com/cpp/23#Coroutine_Library
2.3.3 Diagnostichttps://en.cppreference.com/cpp/23#Diagnostic
2.3.4 Algorithm, Iterators, and Rangeshttps://en.cppreference.com/cpp/23#Algorithm,_Iterators,_and_Ranges
2.3.5 Containershttps://en.cppreference.com/cpp/23#Containers
2.3.6 Compile-time supporthttps://en.cppreference.com/cpp/23#Compile-time_support
2.3.7 Memory Managementhttps://en.cppreference.com/cpp/23#Memory_Management
2.3.8 String and Text Processinghttps://en.cppreference.com/cpp/23#String_and_Text_Processing
2.3.9 I/O and printhttps://en.cppreference.com/cpp/23#I/O_and_print
3 Obsolete featureshttps://en.cppreference.com/cpp/23#Obsolete_features
3.1 Removed featureshttps://en.cppreference.com/cpp/23#Removed_features
3.2 Deprecated featureshttps://en.cppreference.com/cpp/23#Deprecated_features
3.3 Reverted deprecationshttps://en.cppreference.com/cpp/23#Reverted_deprecations
4 Defect reportshttps://en.cppreference.com/cpp/23#Defect_reports
5 Compiler supporthttps://en.cppreference.com/cpp/23#Compiler_support
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5.2 C++23 library featureshttps://en.cppreference.com/cpp/23#C++23_library_features
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