diff --git a/content/en/docs/concepts/services-networking/dual-stack.md b/content/en/docs/concepts/services-networking/dual-stack.md
index 86abdf7c1d..9bdc756b35 100644
--- a/content/en/docs/concepts/services-networking/dual-stack.md
+++ b/content/en/docs/concepts/services-networking/dual-stack.md
@@ -16,7 +16,7 @@ weight: 70
 
 <!-- overview -->
 
-{{< feature-state for_k8s_version="v1.16" state="alpha" >}}
+{{< feature-state for_k8s_version="v1.21" state="beta" >}}
 
  IPv4/IPv6 dual-stack enables the allocation of both IPv4 and IPv6 addresses to {{< glossary_tooltip text="Pods" term_id="pod" >}} and {{< glossary_tooltip text="Services" term_id="service" >}}.
 
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
index 2e9db5fce0..835fb58d76 100644
--- a/content/en/docs/reference/command-line-tools-reference/feature-gates.md
+++ b/content/en/docs/reference/command-line-tools-reference/feature-gates.md
@@ -123,7 +123,7 @@ different Kubernetes components.
 | `HPAScaleToZero` | `false` | Alpha | 1.16 | |
 | `HugePageStorageMediumSize` | `false` | Alpha | 1.18 | 1.18 |
 | `HugePageStorageMediumSize` | `true` | Beta | 1.19 | |
-| `IPv6DualStack` | `false` | Alpha | 1.15 | |
+| `IPv6DualStack` | `true` | Beta | 1.21 | |
 | `KubeletCredentialProviders` | `false` | Alpha | 1.20 | |
 | `KubeletPodResources` | `true` | Alpha | 1.13 | 1.14 |
 | `KubeletPodResources` | `true` | Beta | 1.15 | |