Update service load balancer finalizer doc for GA

MrHohn · MrHohn · commit fd3f98aa0247 · 2019-11-20T10:52:02.000-08:00
diff --git a/content/en/docs/reference/command-line-tools-reference/feature-gates.md b/content/en/docs/reference/command-line-tools-reference/feature-gates.md
@@ -122,7 +122,6 @@ different Kubernetes components.
 | `SCTPSupport` | `false` | Alpha | 1.12 | |
 | `ServerSideApply` | `false` | Alpha | 1.14 | 1.15 |
 | `ServerSideApply` | `true` | Beta | 1.16 | |
-| `ServiceLoadBalancerFinalizer` | `false` | Alpha | 1.15 | |
 | `ServiceNodeExclusion` | `false` | Alpha | 1.8 | |
 | `StartupProbe` | `true` | Beta | 1.17 | |
 | `StorageVersionHash` | `false` | Alpha | 1.14 | 1.14 |
@@ -227,6 +226,9 @@ different Kubernetes components.
 | `ScheduleDaemonSetPods` | `false` | Alpha | 1.11 | 1.11 |
 | `ScheduleDaemonSetPods` | `true` | Beta | 1.12 | 1.16  |
 | `ScheduleDaemonSetPods` | `true` | GA | 1.17 | - |
+| `ServiceLoadBalancerFinalizer` | `false` | Alpha | 1.15 | 1.15 |
+| `ServiceLoadBalancerFinalizer` | `true` | Beta | 1.16 | 1.16 |
+| `ServiceLoadBalancerFinalizer` | `true` | GA | 1.17 | - |
 | `StorageObjectInUseProtection` | `true` | Beta | 1.10 | 1.10 |
 | `StorageObjectInUseProtection` | `true` | GA | 1.11 | - |
 | `SupportIPVSProxyMode` | `false` | Alpha | 1.8 | 1.8 |
diff --git a/content/en/docs/tasks/access-application-cluster/create-external-load-balancer.md b/content/en/docs/tasks/access-application-cluster/create-external-load-balancer.md
@@ -154,6 +154,8 @@ spec:
 
 ## Garbage Collecting Load Balancers
 
+{{< feature-state for_k8s_version="v1.17" state="stable" >}}
+
 In usual case, the correlating load balancer resources in cloud provider should
 be cleaned up soon after a LoadBalancer type Service is deleted. But it is known
 that there are various corner cases where cloud resources are orphaned after the
@@ -167,10 +169,6 @@ The finalizer will only be removed after the load balancer resource is cleaned u
 This prevents dangling load balancer resources even in corner cases such as the
 service controller crashing.
 
-This feature is beta and enabled by default since Kubernetes v1.16. You can also
-enable it in v1.15 (alpha) via the [feature gate](/docs/reference/command-line-tools-reference/feature-gates/)
-`ServiceLoadBalancerFinalizer`.
-
 ## External Load Balancer Providers
 
 It is important to note that the datapath for this functionality is provided by a load balancer external to the Kubernetes cluster.
