Add note on safe mode and apply review feedback

Author: pjw711

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

@@ -47,7 +47,7 @@ Each number in the version indicates general compatibility with the previous ver
     - 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)
+## Supported Purity Software Versions
 
 |  PurityOS version | Support added in | End of support | Remarks |
 |-------------------|------------------|----------------|---------|
@@ -63,21 +63,30 @@ Each number in the version indicates general compatibility with the previous ver
 
 | Pure HW Controller version | Support added in |
 |----------|-------------|
-| R3	| Year 2021 |
-| R4	| Nexus 2404.x |
+| R3  | Year 2021 |
+| R4  | Nexus 2404.x |
 
-## FAQ
-
-### How does Microsoft notify me of a new supported Purity version?
+## Upgrade process
 
-This document is updated periodically with planned dates of the new Storage software versions supported and for retiring versions. All new versions and end of support announcements are also communicated in release notes.
-
-### How do I upgrade to a new supported Purity version?
+> [!NOTE]
+> Make sure you are upgrading to one of the Purity versions listed in [Supported Purity Software Versions](#supported-purity-software-versions).
 
 Azure Operator Nexus software does not trigger or manage Purity upgrades. Purity upgrades are supported by Pure Storage and can be triggered either through a Pure engineer assisted process or through a self-service process in the Pure1 management portal.
 
 Full details of both upgrade processes, including the procedures for enabling and using self-service upgrade, are available in [Pure's documentation](https://support.purestorage.com/) (login required). Please contact your Pure support representative for further questions about Purity upgrades.
 
+## Upgrade requirements
+
+The following Purity configuration settings must be set over upgrade.
+
+* Safe Mode: Disabled
+
+## FAQ
+
+### How does Microsoft notify me of a new supported Purity version?
+
+This document is updated periodically with planned dates of the new Storage software versions supported and for retiring versions. All new versions and end of support announcements are also communicated in release notes.
+
 ### What happens when a version reaches the end of support?
 
 Only the documented versions receive appropriate support. When a version reaches the end of support, it will no longer receive patches or updates. We recommend upgrading to a supported version as soon as possible.