[libc++][doc] Update the release notes.
Updates the libc++ release notes with the changes since the last
release.
Differential Revision: https://reviews.llvm.org/D95248
GitOrigin-RevId: 193cda105d9131de533596077ff0c694e8b87bbd
diff --git a/docs/index.rst b/docs/index.rst
index ecece32..22d54fa 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -140,7 +140,7 @@
* :ref:`C++14 - Complete <cxx1y-status>`
* :ref:`C++17 - In Progress <cxx1z-status>`
* :ref:`C++20 - In Progress <cxx2a-status>`
-* :ref:`C++2b - Not Started <cxx2b-status>`
+* :ref:`C++2b - In Progress <cxx2b-status>`
* `Post C++14 Technical Specifications - In Progress <http://libcxx.llvm.org/ts1z_status.html>`__
* :ref:`C++ Feature Test Macro Status <feature-status>`