diff --git a/README.md b/README.md
index dbdd5d6..4138315 100644
--- a/README.md
+++ b/README.md
@@ -96,6 +96,8 @@ Learn more about ArcGIS open source apps [here](https://developers.arcgis.com/ex
 * [ArcGIS Runtime SDK for iOS](https://developers.arcgis.com/ios/)
 * For directions and to browse Web Maps you will also need an ArcGIS Online Organizational account or an ArcGIS Online Developer account.
 
+**Note:** Starting from the 100.8 release, the *ArcGIS Runtime SDK for iOS* uses Apple's [Metal](https://developer.apple.com/metal/) framework to render maps and scenes. In order to run your app in a simulator you must be developing on **macOS Catalina**, using **Xcode 11**, and simulating **iOS 13**.
+
 ## Contributing
 Anyone and everyone is welcome to [contribute](CONTRIBUTING.md). We do accept pull requests.
 
diff --git a/RELEASE.md b/RELEASE.md
index 69df75b..7646a54 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -1,3 +1,7 @@
+# Release 1.0.4
+
+* Certification for the 100.8.0 release of the ArcGIS Runtime SDK for iOS.
+
 # Release 1.0.3
 
 - Updates minimum deployment target to match that supported by ArcGIS iOS Runtime SDK.
diff --git a/maps-app-ios.xcodeproj/project.pbxproj b/maps-app-ios.xcodeproj/project.pbxproj
index e1edffa..cfc0565 100644
--- a/maps-app-ios.xcodeproj/project.pbxproj
+++ b/maps-app-ios.xcodeproj/project.pbxproj
@@ -947,7 +947,7 @@
 				);
 				INFOPLIST_FILE = "maps-app-ios/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				MARKETING_VERSION = 1.0.3;
+				MARKETING_VERSION = 1.0.4;
 				OTHER_LDFLAGS = "";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.esri.arcgisruntime.opensourceapps.maps-app";
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -975,7 +975,7 @@
 				);
 				INFOPLIST_FILE = "maps-app-ios/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				MARKETING_VERSION = 1.0.3;
+				MARKETING_VERSION = 1.0.4;
 				OTHER_LDFLAGS = "";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.esri.arcgisruntime.opensourceapps.maps-app";
 				PRODUCT_NAME = "$(TARGET_NAME)";