https://docs.umbraco.com/umbraco-cms/13.latest/implementation/nullable-reference-types
Nullable Reference Types | CMS 13.latest (LTS) | Umbraco Documentation
In this article we describe what Nullable reference types is.
nullable reference typescmslatestltsumbraco
https://www.technetexperts.com/csharp-nullable-array-parameter-behavior/
C# Nullable Reference Types: Array Parameter Behavior Explained [Fixed]
Jan 6, 2026 - Understand why passing string[] to E?[] works and string[] to ref E?[] warns in C# 12. Deep dive into nullable reference type array behavior.
nullable reference typesarrayparameterbehaviorexplained