Merge in master.

Author: gbmhunter

CHANGELOG.md

@@ -7,10 +7,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## Unreleased
 
-## [2.8.4] - 2025-05-08
+## [2.8.5] - 2025-06-08
 
 - Fixed bug where if SerialPort is destroyed before Open has been called, it attempts to close using an uninitialised file descriptor, closes #57.
 
+## [2.8.4] - 2025-04-09
+
+- Added support for CMake 4.0+ by dropping support for CMake 3.1 and setting the minimum required CMake version to 3.5.
+
 ## [2.8.3] - 2025-04-01
 
 - Changed the read buffers allocation from `reserve()` to `resize()`. This should fix potential crashes due to a misuse of the C++ std API.

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.1.0)
+cmake_minimum_required(VERSION 3.5.0)
 
 project(CppLinuxSerial VERSION 2.7.1)
 

include/CppLinuxSerial/SerialPort.hpp

@@ -249,7 +249,7 @@ namespace mn {
             SoftwareFlowControl softwareFlowControl_ = SoftwareFlowControl::OFF;
 
             /// \brief      The file descriptor for the open file. This gets written to when Open() is called.
-            int fileDesc_;
+            int fileDesc_ = -1;
 
             bool echo_;