# 6.6.0

5 May 2023

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### C# classes available in Expressions

C# has many useful classes, like for instance the Math class, which can now easily be used in any of your Linx Expressions. A `#.` construct was added to the Linx Expression syntax which exposes any C# classes found under the *System* and *System.IO* namespaces. E.g. to use the Math.Abs method, simply type `#.System.Math.Abs(MyInteger)` into an expression.

<div align="left"><figure><img src="https://3338214469-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F1nxDeDH8GVCXb0XelqGm%2Fuploads%2Fgit-blob-5c500beecef5eba5b87b428ad1d0ea0cd9fa5cfa%2Fcsharp_libraries.png?alt=media" alt="CSharp Libraries"><figcaption></figcaption></figure></div>

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### Various other GUI fixes, bugs and enhancements

* Fixed an issue where saving a changed setting in the Linx Server had no effect
* Fixed an issue where Write-only properties were shown in Debug Values
* Fixed the long delay before opening solutions in Designer
* Fixed an issue in the Expression Editor where a comment was highlighted while being inside a string literal