Merge pull request #6520 from gregg-miskelly/StringTrunChangeLog

Add debugger truncated strings entry to the changelog

Author: dibarbet

CHANGELOG.md

@@ -44,6 +44,7 @@
   * Update Razor project configuration file name (PR: [#70156](https://github.com/dotnet/roslyn/pull/70156))* added support.md file (PR: [#6478](https://github.com/dotnet/vscode-csharp/pull/6478))
 * Debugger: Improve the display of various debug configurations and snippets (PR: [#6456](https://github.com/dotnet/vscode-csharp/pull/6456))
 * Initialize Razor even if Razor doc isn't opened yet (PR: [#6473](https://github.com/dotnet/vscode-csharp/pull/6473))
+* Debugger: better handle long strings ([#6496](https://github.com/dotnet/vscode-csharp/issues/6496)). Strings are truncated if they are longer than 1024 UTF-16 characters, but the full value  up to 5,242,880 characters or 10 megabytes, is available using 'Copy Value' in the watch or variables window. Truncated strings will end with '...'.
 
 ## 2.5.30
 * Add code action fix all support (PR: [#6310](https://github.com/dotnet/vscode-csharp/pull/6310))