Merge pull request #294379 from denisacatalinastan/patch-17

Update container-storage-release-notes.md

Author: prmerger-automator[bot]

articles/storage/container-storage/container-storage-release-notes.md

@@ -9,14 +9,15 @@ ms.author: dstan
 ---
 # Release notes for Azure Container Storage
 
-This article provides the release notes for Azure Container Storage. It's important to note that minor releases introduce new functionalities in a backward-compatible manner (for example, 1.2.0 Minor Release). Patch releases focus on bug fixes, security updates, and smaller improvements (for example, 1.1.2).
+This article provides the release notes for Azure Container Storage. It's important to note that minor releases introduce new functionalities in a backward-compatible manner (for example, 1.2.0 Minor Release). Patch releases focus on bug fixes, security updates, and smaller improvements (for example, 1.2.1).
 
 ## Supported versions
 
 The following Azure Container Storage versions are supported: 
 
 | Milestone | Status |
 |----|----------------| 
+|1.2.1- Patch Release | Supported |
 |1.2.0- Minor Release | Supported |
 |1.1.2- Patch Release | Supported |
 |1.1.1- Patch Release | Supported |
@@ -30,6 +31,13 @@ The following Azure Container Storage versions are no longer supported: 1.0.6-pr
 
 A **major release** introduces significant changes, often including new features, architectural updates, or breaking changes; for example, moving from version 1.1.0 to 2.0.0. A **minor release** adds enhancements or new functionality that are backward-compatible, such as moving from version 1.1.0 to 1.2.0. Lastly, a **patch release** focuses on resolving critical bugs, security issues, or minor optimizations while maintaining backward compatibility, such as moving from version 1.1.1 to 1.1.2, and is intended to ensure stability and reliability without introducing new features.
 
+## Version 1.2.1 
+
+### Improvements and issues that are fixed
+
+- **Bug fixes and performance improvements**: The version improved security and resilience by addressing vulnerabilities, updating Azure Linux base images, and reinforcing container security. These updates enhance threat mitigation and compliance. 
+- **Ephemeral disk performance enhancements**: You can now deploy Azure Container Storage on nodes with custom taints, including GPU nodes where [AKS documentation](/azure/aks/gpu-cluster?tabs=add-ubuntu-gpu-node-pool) recommends taints. This feature is supported for **ephemeral storage pools only**, providing flexibility in workload placement. 
+
 ## Version 1.2.0 
 
 ### Improvements and issues that are fixed
@@ -49,7 +57,7 @@ A **major release** introduces significant changes, often including new features
 
 ### Improvements and issues that are fixed
 
-- This minor release addresses specific issues that some customers experienced during the creation of Azure Elastic SAN storage pools. It resolves exceptions that were causing disruptions in the setup process, ensuring smoother and more reliable storage pool creation.
+- This patch release addresses specific issues that some customers experienced during the creation of Azure Elastic SAN storage pools. It resolves exceptions that were causing disruptions in the setup process, enabling smoother and more reliable storage pool creation.
 - We've also made improvements to cluster restart scenarios. Previously, some corner-case situations caused cluster restarts to fail. This update ensures that cluster restarts are more reliable and resilient.
 
 ## Version 1.1.0
@@ -71,6 +79,7 @@ Azure Container Storage follows a transparent and predictable support lifecycle
 
 | Release version | Release Date  | End of Life | Supported Kubernetes Versions |
 |----|----------------| ------------| -------- |
+|1.2.1- Patch Release| 02/10/2025| 11/10/2025| 1.30, 1.29, 1.28| 
 |1.2.0- Minor Release | 11/11/2024 | 11/10/2025 | 1.30, 1.29, 1.28 | 
 |1.1.2- Patch Release | 10/16/2024 | 07/29/2025 | 1.29, 1.28, 1.27 |
 |1.1.1- Patch Release | 09/20/2024 | 07/29/2025 | 1.29, 1.28, 1.27 | 
@@ -89,7 +98,7 @@ Before upgrading the Kubernetes version in your AKS cluster, we recommend checki
 
 To maintain compatibility and avoid unvalidated combinations of Azure Container Storage and AKS: 
 
-- All patch releases within a minor version (for example, 1.1.x) will support the same Kubernetes versions as the initial minor release (for example, 1.1.0). 
+- All patch releases within a minor version (for example, 1.1.x) will support the same Kubernetes versions as the initial minor release (for example, 1.2.1). 
 
 - New minor releases (for example, 1.2.0 and subsequent 1.2.x) will support a sliding window of Kubernetes versions, advancing to the next version with each new minor release (for example, 1.2.0 supports 1.28, 1.29, and 1.30).