diff --git a/content/en/docs/concepts/storage/volumes.md b/content/en/docs/concepts/storage/volumes.md
index bcf6abe2d9c72..fdc54d4a7d30c 100644
--- a/content/en/docs/concepts/storage/volumes.md
+++ b/content/en/docs/concepts/storage/volumes.md
@@ -1132,7 +1132,7 @@ spec:
 
 ### Using subPath with expanded environment variables
 
-{{< feature-state for_k8s_version="v1.14" state="alpha" >}}
+{{< feature-state for_k8s_version="v1.15" state="beta" >}}
 
 
 Use the `subPathExpr` field to construct `subPath` directory names from Downward API environment variables.
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 8807d19b2d916..c6b743a5ff607 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
@@ -154,7 +154,8 @@ different Kubernetes components.
 | `VolumeScheduling` | `false` | Alpha | 1.9 | 1.9 |
 | `VolumeScheduling` | `true` | Beta | 1.10 | 1.12 |
 | `VolumeScheduling` | `true` | GA | 1.13 | |
-| `VolumeSubpathEnvExpansion` | `false` | Alpha | 1.14 | |
+| `VolumeSubpathEnvExpansion` | `false` | Alpha | 1.14 | 1.14 |
+| `VolumeSubpathEnvExpansion` | `true` | Beta | 1.15 | |
 | `VolumeSnapshotDataSource` | `false` | Alpha | 1.12 | - |
 | `ScheduleDaemonSetPods` | `false` | Alpha | 1.11 | 1.11 |
 | `ScheduleDaemonSetPods` | `true` | Beta | 1.12 | |