add blog for Retroactive Default StorageClass move to GA

Author: RomanBednar

content/en/blog/_posts/2023-08-18-retroactive-default-storage-class-ga.md

@@ -0,0 +1,39 @@
+---
+layout: blog
+title: "Kubernetes v1.28: Retroactive Default StorageClass move to GA"
+date: 2023-08-18
+slug: retroactive-default-storage-class-ga
+---
+
+**Author:** Roman Bednář (Red Hat)
+
+Announcing graduation to General Availability (GA) - Retroactive Default StorageClass Assignment in Kubernetes v1.28!
+
+Kubernetes SIG Storage team is thrilled to announce that the "Retroactive Default StorageClass Assignment" feature,
+introduced as an alpha in Kubernetes v1.25, has now graduated to GA and is officially part of the Kubernetes v1.28 release.
+This enhancement brings a significant improvement to how default
+[StorageClasses](/docs/concepts/storage/storage-classes/) are assigned to PersistentVolumeClaims (PVCs).
+
+With this feature enabled, you no longer need to create a default StorageClass first and then a PVC to assign the class.
+Instead, any PVCs without a StorageClass assigned will now be retroactively updated to include the default StorageClass.
+This enhancement ensures that PVCs no longer get stuck in an unbound state, and storage provisioning works seamlessly,
+even when a default StorageClass is not defined at the time of PVC creation.
+
+## What changed?
+
+The PersistentVolume (PV) controller has been modified to automatically assign a default StorageClass to any unbound
+PersistentVolumeClaim with the `storageClassName` not set. Additionally, the PersistentVolumeClaim
+admission validation mechanism within
+the API server has been adjusted to allow changing values from an unset state to an actual StorageClass name.
+
+## How to use it?
+
+As this feature has graduated to GA, there's no need to enable a feature gate anymore.
+Simply make sure you are running Kubernetes v1.28 or later, and the feature will be available for use.
+
+For more details, read about
+[default StorageClass assignment](/docs/concepts/storage/persistent-volumes/#retroactive-default-storageclass-assignment) in the Kubernetes documentation.
+You can also read the previous [blog post](/blog/2023/01/05/retroactive-default-storage-class/) announcing beta graduation in v1.26.
+
+To provide feedback, join our [Kubernetes Storage Special-Interest-Group](https://github.com/kubernetes/community/tree/master/sig-storage) (SIG)
+or participate in discussions on our [public Slack channel](https://app.slack.com/client/T09NY5SBT/C09QZFCE5).