diff --git a/docs/modules/ROOT/partials/_configprops.adoc b/docs/modules/ROOT/partials/_configprops.adoc
index 81866e90..70a740c2 100644
--- a/docs/modules/ROOT/partials/_configprops.adoc
+++ b/docs/modules/ROOT/partials/_configprops.adoc
@@ -129,6 +129,7 @@
 |spring.cloud.gateway.mvc.streaming-buffer-size | `+++16384+++` | Buffer size for streaming media mime-types.
 |spring.cloud.gateway.mvc.streaming-media-types |  | Mime-types that are streaming.
 |spring.cloud.gateway.mvc.transfer-encoding-normalization-request-headers-filter.enabled | `+++true+++` | Enables the transfer-encoding-normalization-request-headers-filter.
+|spring.cloud.gateway.mvc.trusted-proxies |  | Regular expression defining proxies that are trusted when they appear in a Forwarded of X-Forwarded header.
 |spring.cloud.gateway.mvc.weight-calculator-filter.enabled | `+++true+++` | Enables the weight-calculator-filter.
 |spring.cloud.gateway.mvc.x-forwarded-request-headers-filter.enabled | `+++true+++` | If the XForwardedHeadersFilter is enabled.
 |spring.cloud.gateway.mvc.x-forwarded-request-headers-filter.for-append | `+++true+++` | If appending X-Forwarded-For as a list is enabled.
@@ -170,6 +171,7 @@
 |spring.cloud.gateway.routes |  | List of Routes.
 |spring.cloud.gateway.set-status.original-status-header-name |  | The name of the header which contains http code of the proxied request.
 |spring.cloud.gateway.streaming-media-types |  | 
+|spring.cloud.gateway.trusted-proxies |  | Regular expression defining proxies that are trusted when they appear in a Forwarded or X-Forwarded header.
 |spring.cloud.gateway.x-forwarded.enabled | `+++true+++` | If the XForwardedHeadersFilter is enabled.
 |spring.cloud.gateway.x-forwarded.for-append | `+++true+++` | If appending X-Forwarded-For as a list is enabled.
 |spring.cloud.gateway.x-forwarded.for-enabled | `+++true+++` | If X-Forwarded-For is enabled.
diff --git a/docs/pom.xml b/docs/pom.xml
index 33237b02..6a82d9f3 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 	</parent>
 	<artifactId>spring-cloud-gateway-docs</artifactId>
 	<packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index f0dbd8bb..178f6972 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
 	<groupId>org.springframework.cloud</groupId>
 	<artifactId>spring-cloud-gateway</artifactId>
-	<version>4.1.9-SNAPSHOT</version>
+	<version>4.1.8-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>Spring Cloud Gateway</name>
diff --git a/spring-cloud-gateway-dependencies/pom.xml b/spring-cloud-gateway-dependencies/pom.xml
index d0d6d02f..3b4ad82e 100644
--- a/spring-cloud-gateway-dependencies/pom.xml
+++ b/spring-cloud-gateway-dependencies/pom.xml
@@ -11,7 +11,7 @@
 	</parent>
 
 	<artifactId>spring-cloud-gateway-dependencies</artifactId>
-	<version>4.1.9-SNAPSHOT</version>
+	<version>4.1.8-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>spring-cloud-gateway-dependencies</name>
diff --git a/spring-cloud-gateway-integration-tests/grpc/pom.xml b/spring-cloud-gateway-integration-tests/grpc/pom.xml
index 9353a1e4..c8aad0bf 100644
--- a/spring-cloud-gateway-integration-tests/grpc/pom.xml
+++ b/spring-cloud-gateway-integration-tests/grpc/pom.xml
@@ -18,7 +18,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway-integration-tests</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-integration-tests/http2/pom.xml b/spring-cloud-gateway-integration-tests/http2/pom.xml
index f173952e..0dcf83d0 100644
--- a/spring-cloud-gateway-integration-tests/http2/pom.xml
+++ b/spring-cloud-gateway-integration-tests/http2/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway-integration-tests</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-integration-tests/httpclient/pom.xml b/spring-cloud-gateway-integration-tests/httpclient/pom.xml
index 2bf2fea9..08178c87 100644
--- a/spring-cloud-gateway-integration-tests/httpclient/pom.xml
+++ b/spring-cloud-gateway-integration-tests/httpclient/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway-integration-tests</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml b/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
index e06a6eb4..8c679b46 100644
--- a/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
+++ b/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway-integration-tests</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-integration-tests/pom.xml b/spring-cloud-gateway-integration-tests/pom.xml
index d852d56e..cab51af8 100644
--- a/spring-cloud-gateway-integration-tests/pom.xml
+++ b/spring-cloud-gateway-integration-tests/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	
diff --git a/spring-cloud-gateway-mvc/pom.xml b/spring-cloud-gateway-mvc/pom.xml
index 88849667..4b87b3db 100644
--- a/spring-cloud-gateway-mvc/pom.xml
+++ b/spring-cloud-gateway-mvc/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-gateway-sample/pom.xml b/spring-cloud-gateway-sample/pom.xml
index 6a9e5639..1bf2a253 100644
--- a/spring-cloud-gateway-sample/pom.xml
+++ b/spring-cloud-gateway-sample/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-server-mvc/pom.xml b/spring-cloud-gateway-server-mvc/pom.xml
index 01ab4b89..a5b7bd44 100644
--- a/spring-cloud-gateway-server-mvc/pom.xml
+++ b/spring-cloud-gateway-server-mvc/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-gateway</artifactId>
-        <version>4.1.9-SNAPSHOT</version>
+        <version>4.1.8-SNAPSHOT</version>
         <relativePath>..</relativePath> <!-- lookup parent from repository -->
     </parent>
     <artifactId>spring-cloud-gateway-server-mvc</artifactId>
diff --git a/spring-cloud-gateway-server/pom.xml b/spring-cloud-gateway-server/pom.xml
index 067b3d8b..72dbd3d9 100644
--- a/spring-cloud-gateway-server/pom.xml
+++ b/spring-cloud-gateway-server/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-gateway-server</artifactId>
diff --git a/spring-cloud-gateway-webflux/pom.xml b/spring-cloud-gateway-webflux/pom.xml
index 413ea68a..b4402605 100644
--- a/spring-cloud-gateway-webflux/pom.xml
+++ b/spring-cloud-gateway-webflux/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-starter-gateway-mvc/pom.xml b/spring-cloud-starter-gateway-mvc/pom.xml
index 5a499ae9..83a6ea16 100644
--- a/spring-cloud-starter-gateway-mvc/pom.xml
+++ b/spring-cloud-starter-gateway-mvc/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-starter-gateway-mvc</artifactId>
diff --git a/spring-cloud-starter-gateway/pom.xml b/spring-cloud-starter-gateway/pom.xml
index 76050005..04911c29 100644
--- a/spring-cloud-starter-gateway/pom.xml
+++ b/spring-cloud-starter-gateway/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.1.9-SNAPSHOT</version>
+		<version>4.1.8-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-starter-gateway</artifactId>