From 675a10a393d97f97ee78be65d1771bbb4e8304c7 Mon Sep 17 00:00:00 2001
From: "Ralf W. Grosse-Kunstleve" <rgrossekunst@nvidia.com>
Date: Tue, 14 Apr 2026 11:18:37 -0700
Subject: [PATCH 1/2] Fix Windows cupti detection for CTK 13.2.1

Add the CTK 13.2.1 CUPTI DLL name to the descriptor catalog so Windows already-loaded detection recognizes the installed library and the cupti pathfinder test can pass again.

Made-with: Cursor
---
 .../cuda/pathfinder/_dynamic_libs/descriptor_catalog.py          | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cuda_pathfinder/cuda/pathfinder/_dynamic_libs/descriptor_catalog.py b/cuda_pathfinder/cuda/pathfinder/_dynamic_libs/descriptor_catalog.py
index f30afe56672..e334e04ddf2 100644
--- a/cuda_pathfinder/cuda/pathfinder/_dynamic_libs/descriptor_catalog.py
+++ b/cuda_pathfinder/cuda/pathfinder/_dynamic_libs/descriptor_catalog.py
@@ -271,6 +271,7 @@ class DescriptorSpec:
         packaged_with="ctk",
         linux_sonames=("libcupti.so.12", "libcupti.so.13"),
         windows_dlls=(
+            "cupti64_2026.1.1.dll",
             "cupti64_2026.1.0.dll",
             "cupti64_2025.4.1.dll",
             "cupti64_2025.3.1.dll",

From db0b6253384a4bc3fdb9732f33ea9e78945a35cf Mon Sep 17 00:00:00 2001
From: "Ralf W. Grosse-Kunstleve" <rgrossekunst@nvidia.com>
Date: Tue, 14 Apr 2026 11:26:46 -0700
Subject: [PATCH 2/2] docs(pathfinder): prepare 1.5.3 release notes

Add the 1.5.3 pathfinder release notes and version-switcher entry so the docs site can publish the new patch release cleanly.

Made-with: Cursor
---
 cuda_pathfinder/docs/nv-versions.json              |  4 ++++
 .../docs/source/release/1.5.3-notes.rst            | 14 ++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 cuda_pathfinder/docs/source/release/1.5.3-notes.rst

diff --git a/cuda_pathfinder/docs/nv-versions.json b/cuda_pathfinder/docs/nv-versions.json
index cf3da48e15b..161f612d7b4 100644
--- a/cuda_pathfinder/docs/nv-versions.json
+++ b/cuda_pathfinder/docs/nv-versions.json
@@ -3,6 +3,10 @@
         "version": "latest",
         "url": "https://nvidia.github.io/cuda-python/cuda-pathfinder/latest/"
     },
+    {
+        "version": "1.5.3",
+        "url": "https://nvidia.github.io/cuda-python/cuda-pathfinder/1.5.3/"
+    },
     {
         "version": "1.5.2",
         "url": "https://nvidia.github.io/cuda-python/cuda-pathfinder/1.5.2/"
diff --git a/cuda_pathfinder/docs/source/release/1.5.3-notes.rst b/cuda_pathfinder/docs/source/release/1.5.3-notes.rst
new file mode 100644
index 00000000000..c44572f9f5e
--- /dev/null
+++ b/cuda_pathfinder/docs/source/release/1.5.3-notes.rst
@@ -0,0 +1,14 @@
+.. SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+.. SPDX-License-Identifier: Apache-2.0
+
+.. py:currentmodule:: cuda.pathfinder
+
+``cuda-pathfinder`` 1.5.3 Release notes
+=======================================
+
+Highlights
+----------
+
+* Add support for the Windows CTK 13.2.1 CUPTI DLL name
+  ``cupti64_2026.1.1.dll`` so ``load_nvidia_dynamic_lib("cupti")`` can
+  recognize the installed library on CTK 13.2.1 systems.