diff --git a/CSharpGeneratorFunctions.sh b/CSharpGeneratorFunctions.sh
index f5536b268e7..3d0fd794043 100644
--- a/CSharpGeneratorFunctions.sh
+++ b/CSharpGeneratorFunctions.sh
@@ -1,7 +1,7 @@
 # This is intended to be imported using the "source" function
 # from any script that wants to invoke the C#-based generator.
 
-declare -r GAPIC_GENERATOR_VERSION=1.4.8
+declare -r GAPIC_GENERATOR_VERSION=1.4.9
 
 TMP_CSHARP_GENERATOR_DIR=tmp-gapic-generator-csharp
 if [[ $CSHARP_GENERATOR_DIR == "" ]]
diff --git a/Src/Support/CommonProjectProperties.xml b/Src/Support/CommonProjectProperties.xml
index a4930d8559b..53fe518ea7d 100644
--- a/Src/Support/CommonProjectProperties.xml
+++ b/Src/Support/CommonProjectProperties.xml
@@ -2,7 +2,7 @@
 
   <!-- common nupkg information -->
   <PropertyGroup>
-    <Version>1.58.0-beta02</Version>
+    <Version>1.58.0</Version>
     <Authors>Google LLC</Authors>
     <Copyright>Copyright 2021 Google LLC</Copyright>
     <PackageTags>Google</PackageTags>
diff --git a/features.json b/features.json
index 6ce1f87ac8e..3e8b1566eae 100644
--- a/features.json
+++ b/features.json
@@ -1,8 +1,8 @@
 {	
   "language": "csharp",	
   "description": "C# libraries for Google APIs.",	
-  "releaseVersion": "1.57.0", "comment1": "Version of generated package.",	
-  "currentSupportVersion": "1.57.0", "comment2": "Version of support library upon which to depend.",	
+  "releaseVersion": "1.58.0", "comment1": "Version of generated package.",	
+  "currentSupportVersion": "1.58.0", "comment2": "Version of support library upon which to depend.",	
   "pclSupportVersion": "1.25.0", "comment3": "Version of PCL support library.",	
   "net40SupportVersion": "1.10.0", "comment4": "Version of net40 support library.",