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Libc++ 17.0.0 (In-Progress) Release Notes
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Written by the `Libc++ Team <>`_
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These are in-progress notes for the upcoming libc++ 17 release.
Release notes for previous releases can be found on
`the Download Page <>`_.
This document contains the release notes for the libc++ C++ Standard Library,
part of the LLVM Compiler Infrastructure, release 17.0.0. Here we describe the
status of libc++ in some detail, including major improvements from the previous
release and new feature work. For the general LLVM release notes, see `the LLVM
documentation <>`_. All LLVM releases may
be downloaded from the `LLVM releases web site <>`_.
For more information about libc++, please see the `Libc++ Web Site
<>`_ or the `LLVM Web Site <>`_.
Note that if you are reading this file from a Git checkout or the
main Libc++ web page, this document applies to the *next* release, not
the current one. To see the release notes for a specific release, please
see the `releases page <>`_.
What's New in Libc++ 17.0.0?
Implemented Papers
Improvements and New Features
Deprecations and Removals
Upcoming Deprecations and Removals
- The ``_LIBCPP_AVAILABILITY_CUSTOM_VERBOSE_ABORT_PROVIDED`` macro will not be honored anymore in LLVM 18.
Please see the updated documentation about the safe libc++ mode and in particular the ``_LIBCPP_VERBOSE_ABORT``
macro for details.
API Changes
ABI Affecting Changes
Build System Changes