diff --git a/anbs_cp/Extensions/GuidExtensions.cs b/anbs_cp/Extensions/GuidExtensions.cs
new file mode 100644
index 0000000..64c93d7
--- /dev/null
+++ b/anbs_cp/Extensions/GuidExtensions.cs
@@ -0,0 +1,14 @@
+namespace anbs_cp.Extensions;
+
+/// <summary>
+/// Расширение Guid
+/// </summary>
+public static class GuidExtensions
+{
+    /// <summary>
+    /// Проверяет Guid на пустоту
+    /// </summary>
+    /// <param name="g">Guid</param>
+    /// <returns>Guid пуст (null) или равен Guid.Empty</returns>
+    public static bool IsNullOrEmpty (this Guid? g) => g == null || g == Guid.Empty;
+}
\ No newline at end of file
diff --git a/anbs_cp/Extensions/StringExtensions.cs b/anbs_cp/Extensions/StringExtensions.cs
index d58a98d..14c3bd0 100644
--- a/anbs_cp/Extensions/StringExtensions.cs
+++ b/anbs_cp/Extensions/StringExtensions.cs
@@ -9,6 +9,6 @@ public static class StringExtensions
     /// Проверяет строку на пустоту
     /// </summary>
     /// <param name="s">Строка</param>
-    /// <returns>Строка пусть (null) или содержит только пробелы</returns>
-    public static bool IsNullOrWhiteSpace(this string? s) => s == null || s.Trim().Length == 0;
+    /// <returns>Строка пуста (null) или содержит только пробелы</returns>
+    public static bool IsNullOrWhiteSpace (this string? s) => s == null || s.Trim().Length == 0;
 }
\ No newline at end of file
diff --git a/anbs_cp/anbs_cp.csproj b/anbs_cp/anbs_cp.csproj
index 9726b78..f9953e6 100644
--- a/anbs_cp/anbs_cp.csproj
+++ b/anbs_cp/anbs_cp.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
-    <Version>2024.1.18</Version>
+    <Version>2024.1.21</Version>
     <Authors>Александр Бабаев</Authors>
     <Product>Набор компонентов ANB Software</Product>
     <Description>Библиотека полезных методов языка C#</Description>