---
title: "Breaking Changes"
description: "This section contains information on breaking changes in Veeam PowerShell v12.1. These changes cause Veeam PowerShell v12.1 to function differently and could affect the code."
canonical: "https://helpcenter.veeam.com/docs/vbr/powershell/breaking_changes_12.1.html"
breadcrumb: "Veeam PowerShell Reference > Veeam PowerShell Changelog > v12.1 Changelog > Breaking Changes"
dateModified: "2026-09-03"
---

# Breaking Changes

This section contains information on breaking changes in Veeam PowerShell v12.1. These changes cause Veeam PowerShell v12.1 to function differently and could affect the code.

## Backup Infrastructure Components

### Object Storage Repositories

In this version, you can no longer enable immutability for an already configured object storage repository since it may result in data loss. Therefore, the `EnableBackupImmutability` parameter is removed from the following cmdlets:

- [`Set-VBRAmazonS3CompatibleRepository`](set-vbramazons3compatiblerepository.md)
- [`Set-VBRAmazonS3GlacierRepository`](set-vbramazons3glacierrepository.md)
- [`Set-VBRS3GlacierCompatibleRepository`](set-vbrs3glaciercompatiblerepository.md)
- [`Set-VBRAzureBlobRepository`](set-vbrazureblobrepository.md)
- [`Set-VBRAzureArchiveRepository`](set-vbrazurearchiverepository.md)

## File Backup

In this version, Veeam PowerShell covers functionality related to the unstructured data backup. This feature allows you to back up and restore unstructured data: content of various file shares and object storage repositories. To support this functionality, the following changes have been done for cmdlets related to file backup jobs:

- A number of cmdlets that were used to work with file backup jobs are deprecated. For more information, see [Deprecated Cmdlets](deprecated_cmdlets.md).
- The following parameter types have been changed for the [`Add-VBRNASBackupJob`](add-vbrnasbackupjob.md) and [`Set-VBRNASBackupJob`](set-vbrnasbackupjob.md) cmdlets:

<table style="width:100%;" class="Blue_Table">
  <tr style="vertical-align:top">
    <th style="height:19px;">
      <p>Parameter</p>
    </th>
    <th style="height:19px;">
      <p>Old Type</p>
    </th>
    <th style="height:19px;">
      <p>New Type</p>
    </th>
  </tr>
  <tr style="vertical-align:top">
    <td style="height:19px;">
      <p class="Table_Text_Bold"><span class="Table_Text_Bold">LongTermArchivalOptions</span></p>
    </td>
    <td style="height:19px;">
      <p><span class="T_Filenames">VBRNASBackupArchivalOptions</span></p>
    </td>
    <td style="vertical-align:top; height:19px;">
      <p><span class="T_Filenames">VBRUnstructuredBackupArchivalOptions</span></p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="height:19px;">
      <p class="Table_Text_Bold"><span class="Table_Text_Bold">ShortTermRetentionType</span></p>
    </td>
    <td style="height:19px;">
      <p><span class="T_Filenames">VBRNASBackupShortTermRetentionType</span></p>
    </td>
    <td style="vertical-align:top; height:19px;">
      <p><span class="T_Filenames">VBRUnstructuredBackupShortTermRetentionType</span></p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="height:19px;">
      <p class="Table_Text_Bold"><span class="Table_Text_Bold">LongTermRetentionType</span></p>
    </td>
    <td style="height:19px;">
      <p><span class="T_Filenames">VBRNASBackupLongTermRetentionType</span></p>
    </td>
    <td style="vertical-align:top; height:19px;">
      <p><span class="T_Filenames">VBRUnstructuredBackupLongTermRetentionType</span></p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="height:19px;">
      <p class="Table_Text_Bold"><span class="Table_Text_Bold">VersionRetentionOptions</span></p>
    </td>
    <td style="height:19px;">
      <p><span class="T_Filenames">VBRNASBackupVersionRetentionOptions</span></p>
    </td>
    <td style="vertical-align:top; height:19px;">
      <p><span class="T_Filenames">VBRUnstructuredBackupVersionRetentionOptions</span></p>
    </td>
  </tr>
  <tr style="vertical-align:top">
    <td style="height:19px;">
      <p class="Table_Text_Bold"><span class="Table_Text_Bold">SecondaryTarget</span></p>
    </td>
    <td style="height:19px;">
      <p><span class="T_Filenames">VBRNASBackupSecondaryTarget[]</span></p>
    </td>
    <td style="vertical-align:top; height:19px;">
      <p><span class="T_Filenames">VBRUnstructuredBackupSecondaryTarget[]</span></p>
    </td>
  </tr>
</table>

## SureBackup

In this version, the type for the `Job` parameter is changed from the `VBRSureBackupJob` to `VBRSureBackupJobBase` for the following cmdlets:

- [`Enable-VBRSureBackupJob`](enable-vbrsurebackupjob.md)
- [`Disable-VBRSureBackupJob`](disable-vbrsurebackupjob.md)
- [`Start-VBRSureBackupJob`](start-vbrsurebackupjob.md)
- [`Stop-VBRSureBackupJob`](stop-vbrsurebackupjob.md)
- [`Remove-VBRSureBackupJob`](remove-vbrsurebackupjob.md)