diff --git a/content/en/docs/concepts/workloads/pods/pod-lifecycle.md b/content/en/docs/concepts/workloads/pods/pod-lifecycle.md
index 9dc37c357ceec..7d4a7e0071729 100644
--- a/content/en/docs/concepts/workloads/pods/pod-lifecycle.md
+++ b/content/en/docs/concepts/workloads/pods/pod-lifecycle.md
@@ -314,7 +314,7 @@ to stop.
### When should you use a startup probe?
-{{< feature-state for_k8s_version="v1.16" state="alpha" >}}
+{{< feature-state for_k8s_version="v1.20" state="stable" >}}
Startup probes are useful for Pods that have containers that take a long time to
come into service. Rather than set a long liveness interval, you can configure
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 942fa2221be26..024029fbcf4ac 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
@@ -148,8 +148,6 @@ different Kubernetes components.
| `ServiceNodeExclusion` | `true` | Beta | 1.19 | |
| `ServiceTopology` | `false` | Alpha | 1.17 | |
| `SetHostnameAsFQDN` | `false` | Alpha | 1.19 | |
-| `StartupProbe` | `false` | Alpha | 1.16 | 1.17 |
-| `StartupProbe` | `true` | Beta | 1.18 | |
| `StorageVersionHash` | `false` | Alpha | 1.14 | 1.14 |
| `StorageVersionHash` | `true` | Beta | 1.15 | |
| `Sysctls` | `true` | Beta | 1.11 | |
@@ -277,6 +275,9 @@ different Kubernetes components.
| `ServiceLoadBalancerFinalizer` | `false` | Alpha | 1.15 | 1.15 |
| `ServiceLoadBalancerFinalizer` | `true` | Beta | 1.16 | 1.16 |
| `ServiceLoadBalancerFinalizer` | `true` | GA | 1.17 | - |
+| `StartupProbe` | `false` | Alpha | 1.16 | 1.17 |
+| `StartupProbe` | `true` | Beta | 1.18 | 1.19 |
+| `StartupProbe` | `true` | GA | 1.20 | - |
| `StorageObjectInUseProtection` | `true` | Beta | 1.10 | 1.10 |
| `StorageObjectInUseProtection` | `true` | GA | 1.11 | - |
| `StreamingProxyRedirects` | `false` | Beta | 1.5 | 1.5 |
diff --git a/content/en/docs/reference/command-line-tools-reference/kubelet.md b/content/en/docs/reference/command-line-tools-reference/kubelet.md
index 2a123796a14ac..38d5026cb7beb 100644
--- a/content/en/docs/reference/command-line-tools-reference/kubelet.md
+++ b/content/en/docs/reference/command-line-tools-reference/kubelet.md
@@ -617,7 +617,6 @@ ServiceAppProtocol=true|false (BETA - default=true)
ServiceNodeExclusion=true|false (BETA - default=true)
ServiceTopology=true|false (ALPHA - default=false)
SetHostnameAsFQDN=true|false (ALPHA - default=false)
-StartupProbe=true|false (BETA - default=true)
StorageVersionHash=true|false (BETA - default=true)
SupportNodePidsLimit=true|false (BETA - default=true)
SupportPodPidsLimit=true|false (BETA - default=true)