diff --git a/README.md b/README.md
index aee8990..81aa60f 100644
--- a/README.md
+++ b/README.md
@@ -28,9 +28,9 @@ Concepts and various type constraints have been added. Enhancements are always a
 
 The generated Doxygen documentation for `wait_queue` is [here](https://connectivecpp.github.io/wait-queue/).
 
-## Dependencies
+## Library Dependencies
 
-The `wait_queue` header file does not have any third-party dependencies. It uses C++ standard library headers only. The unit test code does have dependencies as noted below.
+The `wait_queue` header file does not have any third-party dependencies. It uses C++ standard library headers only. The unit test and example code do have dependencies as noted below.
 
 ## C++ Standard
 
@@ -51,6 +51,10 @@ The unit test uses two third-party libraries (each is a single header-only file)
 
 Specific version (or branch) specs for the dependencies are in the [test/CMakeLists.txt](test/CMakeLists.txt) file, look for the `CPMAddPackage` command.
 
+## Example Dependencies
+
+The example applications use the Connective C++ `shared_buffer` reference counted buffer classes. Specific version (or branch) specs for the dependency are in the [example/CMakeLists.txt](example/CMakeLists.txt) file, look for the `CPMAddPackage` command.
+
 ## Build and Run Unit Tests
 
 To build and run the unit test program:
@@ -73,3 +77,7 @@ test/wait_queue_test -s
 
 The example can be built by adding `-D WAIT_QUEUE_BUILD_EXAMPLES:BOOL=ON` to the CMake configure / generate step.
 
+### CMake Version Compatibility
+
+CMake 3.27 and later has removed (or will remove) compatibility with CMake versions older than 3.5. The GitHub actions for the `wait_queue` unit test have been updated to use the `CMAKE_POLICY_VERSION_MINIMUM=3.5` flag as a workaround (until the dependent library CMake files have been updated appropriately).
+
diff --git a/cmake/download_cpm.cmake b/cmake/download_cpm.cmake
index a7319b7..6d7718c 100644
--- a/cmake/download_cpm.cmake
+++ b/cmake/download_cpm.cmake
@@ -4,7 +4,7 @@
 
 file(
   DOWNLOAD
-  https://github.com/cpm-cmake/CPM.cmake/releases/download/v0.40.8/CPM.cmake
+  https://github.com/cpm-cmake/CPM.cmake/releases/download/v0.42.0/CPM.cmake
   ${CMAKE_CURRENT_BINARY_DIR}/cmake/CPM.cmake
 )
 include(${CMAKE_CURRENT_BINARY_DIR}/cmake/CPM.cmake)
diff --git a/example/CMakeLists.txt b/example/CMakeLists.txt
index 40c57c6..9310995 100644
--- a/example/CMakeLists.txt
+++ b/example/CMakeLists.txt
@@ -9,7 +9,7 @@ cmake_minimum_required ( VERSION 3.14 FATAL_ERROR )
 project ( wait_queue_example LANGUAGES CXX )
 
 # add dependencies
-CPMAddPackage ( "gh:connectivecpp/shared-buffer@1.0.2" )
+CPMAddPackage ( "gh:connectivecpp/shared-buffer@1.0.5" )
 
 # add executables
 add_executable ( wait_queue_example wait_queue_example.cpp )
diff --git a/include/queue/wait_queue.hpp b/include/queue/wait_queue.hpp
index 1de1e44..dab1a18 100644
--- a/include/queue/wait_queue.hpp
+++ b/include/queue/wait_queue.hpp
@@ -14,7 +14,7 @@
  * for specific use cases (see below for additional details). The default container
  * type is @c std::deque.
  *
- * A graceful shutdown can be requested using the @c request_stop method (modeled on the 
+ * A graceful shutdown can be requested using the @c std::request_stop method (modeled on the 
  * C++ 20 @c request_stop from @c std::stop_source). This allows waiting reader threads 
  * to be notified for shutdown. Alternatively a @c std::stop_token can be passed in to 
  * the @c wait_queue constructor, allowing shutdown from outside of the @c wait_queue 
@@ -142,7 +142,7 @@
  *
  * @authors Cliff Green, Lou Langholtz, Anthony Williams
  *
- * @copyright (c) 2017-2024 by Cliff Green
+ * @copyright (c) 2017-2025 by Cliff Green
  *
  * Distributed under the Boost Software License, Version 1.0. 
  * (See accompanying file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 123878f..a5cc15e 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -15,7 +15,7 @@ target_compile_features ( wait_queue_test PRIVATE cxx_std_20 )
 # add dependencies
 include ( ../cmake/download_cpm.cmake )
 
-CPMAddPackage ( "gh:catchorg/Catch2@3.8.0" )
+CPMAddPackage ( "gh:catchorg/Catch2@3.11.0" )
 CPMAddPackage ( "gh:martinmoene/ring-span-lite@0.7.0" )
 # CPMAddPackage ( "gh:JustasMasiulis/circular_buffer@master" )
 CPMAddPackage ( NAME circular_buffer
diff --git a/test/wait_queue_test.cpp b/test/wait_queue_test.cpp
index 9405ce9..e253f69 100644
--- a/test/wait_queue_test.cpp
+++ b/test/wait_queue_test.cpp
@@ -4,7 +4,7 @@
  *
  * @author Cliff Green
  *
- * @copyright (c) 2017-2024 by Cliff Green
+ * @copyright (c) 2017-2025 by Cliff Green
  *
  * Distributed under the Boost Software License, Version 1.0. 
  * (See accompanying file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)