Xcode 16.3 removes the base template for std::char_traits: Xcode 16.3 Release Notes. This prevents to build iOS app with new Xcode 16.3. Also React Native developers are not able to compile the project in Xcode 16.3.
Here is the detailed information that all developers should know.
While Xcode 16.3 was released, here Apple marked deprecation as well as removed the base template for std::char_traits.
But after release, many developers faced the compile-time errors due to that removal with deprecation. Also, in React Native they have released a specific React Native version for the fix of this compiler issue (Reference).
In the Xcode 16.4 beta release, Apple has restored the std::char_traits and given more time to transition. Also informed developers that it will be removed in the future release.
Thanks! Happy Coding 🙂