Yesterday VMware released the latest SRM product, version 8.2. This release introduces an SRM virtual appliance that runs the Photon OS and within the OS containers for SRM itself and any supported SRAs. This release still offers a Windows-based solution, but VMware will eventually fully transition to the appliance. You can check out the release notes here.
Unfortunately, currently no version of the VMAX/PowerMax SRDF SRA supports SRM 8.2, either the appliance or the Windows version. We are targeting early next year.
Dell PowerFlex and PowerMax with VMware 
Next year? Really???
Although support for both OS platforms is scheduled for next year, if you need to upgrade to Windows SRM 8.2, I encourage you to open an enhancement request for the current SRA 9.0 to support Windows SRM 8.2. You can do this by opening an SR and telling the analyst you want an enhancement, or your Dell representative can do it for you. The new SRM 8.2 appliance requires significant development and would not be considered as an enhancement request.