Share via

Roll up 83 V9.66.7691.1 of the mobility service agent can't find anywhere to download or access it

Richpal Godara 0 Reputation points
2026-03-05T16:30:50.4566667+00:00

According to the below articles, NVMe disks are expected to be supported starting with Mobility Service Agent version 9.66.7691.1. However, I have not been able to locate this version available for download or access through the usual channels.
https://learn.microsoft.com/en-us/azure/site-recovery/site-recovery-whats-new
https://support.microsoft.com/en-gb/topic/update-rollup-83-for-azure-site-recovery-a855fd73-e9f5-4339-adf7-d45b2dc9f4e3

Could anyone please confirm whether Rollup 83 which includes Mobility Service Agent version 9.66.7691.1 has been released for general availability? Additionally, could you advise where this version can be downloaded or how it can be obtained to proceed with upgrading the agent?

Azure Site Recovery
Azure Site Recovery

An Azure native disaster recovery service. Previously known as Microsoft Azure Hyper-V Recovery Manager.

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Bharath Y P 7,240 Reputation points Microsoft External Staff Moderator
    2026-03-10T10:22:35.7733333+00:00

    Hello Richpal Godara, it looks like you’re trying to get your hands on Rollup 83 (Mobility Service Agent 9.66.7691.1) so you can enable NVMe disk support. Good news – Rollup 83 is in General Availability and you can pull down the new agent today. Here’s how:

    1. Download straight from the Azure Portal a. Sign in to the Azure portal and navigate to your Recovery Services vault. b. Under “Site Recovery” in the left menu, go to Prepare infrastructure > Mobility Service. c. Click Download and pick the version for your OS – you should see 9.66.7691.1 listed there.
    2. (Alternative) Use the Microsoft Download Center If you prefer a direct link, you can grab the MSI from the official Microsoft Download Center entry for Update Rollup 83. Just search for “Azure Site Recovery Update Rollup 83” or use the link below.

    Once you’ve downloaded the MSI, run it on your protected machines to upgrade the Mobility Service to 9.66.7691.1. After a reboot (if prompted), NVMe-based disks will be discoverable and protected just like any other disk.

    Hope that helps! Let me know if you hit any snags.

    References:

  2. Q&A Assist
    2026-03-05T16:31:12.5666667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    Rollup 83 with Mobility service agent version 9.66.7691.1 is listed as a supported and released update for Azure Site Recovery.

    The version is not distributed as a standalone public download link. For modernized VMware/physical-to-Azure scenarios, the supported way to obtain and upgrade the Mobility agent is:

    1. In the Azure portal, open the protected VM.
    2. In the Overview blade, check Agent version; if Rollup 83 (9.66.7691.1) is available, the status shows New update available.
    3. Download the latest agent package on the source machine using the link chain documented for Mobility agent updates:
      • From the VM, follow the guidance under Update mobility agent manually to download the latest package from the Site Recovery “Supported updates” page.
    4. On Windows machines, update the agent using the documented commands, for example:
      • Extract the package: 
             Microsoft-ASR_UA*Windows*release.exe /q /x:C:\Azure Site Recovery\Agent
      • Run the upgrade: 
             UnifiedAgent.exe /Role "MS" /Platform VmWare /Silent /InstallationType Upgrade /CSType CSPrime /InstallLocation "C:\Program Files (x86)\Microsoft Azure Site Recovery"

    The “What’s new in Site Recovery” page confirms Rollup 83 as the latest supported Mobility service agent version (9.66.7691.1). The same page is the canonical location for the latest package that the manual update flow references.

    If the portal does not yet show New update available for a given VM, wait until the service exposes the new version for that protection configuration, then use the above procedure.

    References:

    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.