diff --git a/Directory.Build.props b/Directory.Build.props
index 488aa18..43b6235 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,7 +1,7 @@
 <Project>
 
   <PropertyGroup>
-    <VersionPrefix>1.4.1</VersionPrefix>
+    <VersionPrefix>1.4.2</VersionPrefix>
     <NoWarn>$(NoWarn);1591;1998;NU1507;NU5105</NoWarn>
     <GitHubOrganization>Faithlife</GitHubOrganization>
     <RepositoryName>FindReplaceCode</RepositoryName>
diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index 5c682e8..1450ab0 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -1,5 +1,9 @@
 # Release Notes
 
+## 1.4.2
+
+* Find and replace `.slnx` files.
+
 ## 1.4.1
 
 * Update package README.
diff --git a/src/FindReplaceCode/ProgramSettings.cs b/src/FindReplaceCode/ProgramSettings.cs
index e4beef5..5d7dcf5 100644
--- a/src/FindReplaceCode/ProgramSettings.cs
+++ b/src/FindReplaceCode/ProgramSettings.cs
@@ -25,6 +25,7 @@ internal static class ProgramSettings
 		".razor",
 		".settings",
 		".sln",
+		".slnx",
 		".sql",
 		".ts",
 		".xaml",