Update changelog and global.json for .NET 10.0 and C# 14 upgrade

Author: Jan5366x

CHANGELOG.md

@@ -1,10 +1,12 @@
 ## v4.0.0
 * Switch to .Net 10.0
+* Switch to C# 14
 * Code refactoring
 * Fix code example 7 and 8 in readme
 * Add tests for readme code examples
 * Adjust readme code example to use filePath instead of filename or path
 * Suppress warnings CA2022 and S2674 due to expected dynamic array length
+* Remove Serializable annotation from EncodingSecurityException
 
 ## v3.0.0 - 5 Feb 2024
 * Switch to .Net 8.0

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "8.0.1",
+    "version": "10.0.0",
     "rollForward": "latestMajor",
     "allowPrerelease": false
   }