Add Purity 6.5.8 as supported and add expansion shelf support text

Author: pjw711

articles/operator-nexus/reference-near-edge-storage-supported-versions.md

@@ -39,13 +39,13 @@ Each number in the version indicates general compatibility with the previous ver
 
 
 ## Release process
-1.	**End of support:** 
+1.	**End of support:**
     - Nexus will announce end of support for the oldest supported LTS version via release notes once the timeline for the new LTS version is available.
-    - Nexus will stop supporting the oldest supported LTS version shortly before adding support for new LTS version (that is before the next LTS version is ready for testing in labs).  
+    - Nexus will stop supporting the oldest supported LTS version shortly before adding support for new LTS version (that is before the next LTS version is ready for testing in labs).
 3.	**Introduction:** Nexus typically declares support for a new LTS release once the first patch release is available. This is to benefit from any critical fixes. Release cadence:
     - By default, the introduction of any new release support (LTS/patch) will be combined with Nexus runtime release.
-    - Introduction of a new LTS release may, in rare cases, require a specific upgrade ordering and a timeline. 
-    - Depending on severity of Common Vulnerabilities & Exposures (CVE) fixes or blocker issues, a Purity version may be verified and introduced outside of a runtime release. 
+    - Introduction of a new LTS release may, in rare cases, require a specific upgrade ordering and a timeline.
+    - Depending on severity of Common Vulnerabilities & Exposures (CVE) fixes or blocker issues, a Purity version may be verified and introduced outside of a runtime release.
 
 ## Supported Storage Software Versions (Purity)
 
@@ -55,6 +55,7 @@ Each number in the version indicates general compatibility with the previous ver
 | 6.5.1             | Nexus 2403.x     | Dec 2025*     | |
 | 6.5.4             | Nexus 2404.x     | Dec 2025*     | |
 | 6.5.6             | Nexus 2406.2     | Dec 2025*     | Aligned with Nexus runtime release |
+| 6.5.8             | Nexus 2408.2     | Dec 2025*     | |
 
 > [!IMPORTANT]
 > \* At max 2 LTS versions will be supported. The dates are tentative assuming that by this timeframe we will have another set of LTS versions released, making this version deprecate per our support guidelines.
@@ -66,6 +67,14 @@ Each number in the version indicates general compatibility with the previous ver
 | R3	| Year 2021 |
 | R4	| Nexus 2404.x |
 
+## Supported Pure FlashArray Expansion Shelf firmware versions
+
+Azure Operator Nexus supports and tests the latest combination of a Purity version and FlashArray expansion shelf version (DFS) at the time of a Nexus release.
+
+| PurityOS Version | DFS Version|
+|------------------|------------|
+| 6.5.8            | 2.2.1      |
+
 ## FAQ
 
 ### How does Microsoft notify me of a new supported Purity version?