Bump the trunk major version to 13

and clear the release notes.

GitOrigin-RevId: 5369517d20dd362a178a1b2d6c398d8898ee4620
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 60e1c59..f4a15b1 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -1,5 +1,5 @@
 =======================================
-PSTL 12.0.0 (In-Progress) Release Notes
+PSTL 13.0.0 (In-Progress) Release Notes
 =======================================
 
 .. contents::
@@ -10,7 +10,7 @@
 
 .. warning::
 
-   These are in-progress notes for the upcoming pstl 12 release.
+   These are in-progress notes for the upcoming pstl 13 release.
    Release notes for previous releases can be found on
    `the Download Page <https://releases.llvm.org/download.html>`_.
 
@@ -18,7 +18,7 @@
 ============
 
 This document contains the release notes for the PSTL parallel algorithms
-library, part of the LLVM Compiler Infrastructure, release 12.0.0. Here we
+library, part of the LLVM Compiler Infrastructure, release 13.0.0. Here we
 describe the status of the library in some detail, including major improvements
 from the previous release and new feature work. For the general LLVM release
 notes, see `the LLVM documentation <https://llvm.org/docs/ReleaseNotes.html>`_.
@@ -30,7 +30,7 @@
 To see the release notes for a specific release, please see the `releases
 page <https://llvm.org/releases/>`_.
 
-What's New in PSTL 12.0.0?
+What's New in PSTL 13.0.0?
 ==========================
 
 New Features
diff --git a/include/pstl/internal/pstl_config.h b/include/pstl/internal/pstl_config.h
index fc04b6d..88fa2d1 100644
--- a/include/pstl/internal/pstl_config.h
+++ b/include/pstl/internal/pstl_config.h
@@ -13,7 +13,7 @@
 #include <__pstl_config_site>
 
 // The version is XYYZ, where X is major, YY is minor, and Z is patch (i.e. X.YY.Z)
-#define _PSTL_VERSION 12000
+#define _PSTL_VERSION 13000
 #define _PSTL_VERSION_MAJOR (_PSTL_VERSION / 1000)
 #define _PSTL_VERSION_MINOR ((_PSTL_VERSION % 1000) / 10)
 #define _PSTL_VERSION_PATCH (_PSTL_VERSION % 10)
diff --git a/test/pstl/version.pass.cpp b/test/pstl/version.pass.cpp
index 92d06cb..596b893 100644
--- a/test/pstl/version.pass.cpp
+++ b/test/pstl/version.pass.cpp
@@ -8,8 +8,8 @@
 
 #include <pstl/internal/pstl_config.h>
 
-static_assert(_PSTL_VERSION == 12000);
-static_assert(_PSTL_VERSION_MAJOR == 12);
+static_assert(_PSTL_VERSION == 13000);
+static_assert(_PSTL_VERSION_MAJOR == 13);
 static_assert(_PSTL_VERSION_MINOR == 00);
 static_assert(_PSTL_VERSION_PATCH == 0);