Bump the trunk major version to 16

GitOrigin-RevId: 809855b56f06dd7182685f88fbbc64111df9339a
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 697a9e1..785332f 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -1,10 +1,10 @@
 ===========================
-OpenMP 15.0.0 Release Notes
+OpenMP 16.0.0 Release Notes
 ===========================
 
 
 .. warning::
-   These are in-progress notes for the upcoming LLVM 15.0.0 release.
+   These are in-progress notes for the upcoming LLVM 16.0.0 release.
    Release notes for previous releases can be found on
    `the Download Page <https://releases.llvm.org/download.html>`_.
 
@@ -12,7 +12,7 @@
 Introduction
 ============
 
-This document contains the release notes for the OpenMP runtime, release 15.0.0.
+This document contains the release notes for the OpenMP runtime, release 16.0.0.
 Here we describe the status of OpenMP, including major improvements
 from the previous release. All OpenMP releases may be downloaded
 from the `LLVM releases web site <https://llvm.org/releases/>`_.