PowerShell script to capture version of Document Sets using CSOM in SharePoint Online. This script also lists out all the Document Set content type items along with the version information from a document library using the latest CSOM library released recently (version: 16.1.20317.12000 or above). Before this release, the only way to version a D…

Version-DocumentSetsInSPO.ps1

cls 
#Import-Module Microsoft.Online.SharePoint.PowerShell
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
Add-Type -Path "C:\Program Files\Common Files\microsoft shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.DocumentManagement.dll"

#Setting this to True will create new version for any DocSet it identifies that has zero versions existing
$CreateNewVersion = $true
$AdminPass = "password"
$AdminPassword = ConvertTo-SecureString -string $AdminPass -AsPlainText -Force
#$AdminPassword=Read-Host -Prompt "Enter password" -AsSecureString
$username="MeganB@YourTenant.OnMicrosoft.com"
$Url="https://YourTenant.sharepoint.com/sites/ModernTeamSite"
$ListTitle="Documents"
$ctx=New-Object Microsoft.SharePoint.Client.ClientContext($Url)
$ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Username, $AdminPassword)
$ctx.Load($ctx.Web)
$ctx.ExecuteQuery()
$list=$ctx.Web.Lists.GetByTitle($ListTitle)
$ctx.Load($list)
$ctx.ExecuteQuery() 

"Document Library: "+ $ListTitle
"Total Item Count: "+ $list.ItemCount 

$spqQuery = New-Object Microsoft.SharePoint.Client.CamlQuery 
$spqQuery.ViewXml = "<View><Query><Where><Eq><FieldRef Name='ContentType' /><Value Type='Computed'>Document Set</Value></Eq></Where></Query></View>";
#$spqQuery.v .ViewFields = "<FieldRef Name='FileLeafRef' /><FieldRef Name='Title' />" 
#$spqQuery.ViewFieldsOnly = $true 

$items = $list.GetItems($spqQuery) 
$ctx.Load($items)
$ctx.ExecuteQuery() 

write-host "Found (" $items.Count ") DocumentSet content type items."
write-host ""
foreach ($splListItem in $items) 
{ 
    write-host "Id: " $splListItem.Id " ," "Title:" $splListItem["Title"] -ForegroundColor Green 

    $folder = $splListItem.Folder;
    $ctx.Load($folder);
    $ctx.ExecuteQuery() 
    $docSetItem = [Microsoft.SharePoint.Client.DocumentSet.DocumentSet]::GetDocumentSet($ctx, $folder)
    $ctx.Load($docSetItem)
    $ctx.ExecuteQuery()
    $docSetItemVersions = $docSetItem.VersionCollection
    $ctx.Load($docSetItemVersions)
    $ctx.ExecuteQuery()
    write-host "Total versions: " $docSetItemVersions.Count
    
    if($docSetItemVersions.Count -gt 0)
    {
        $docSetItemVersions | %{
            Write-Host "Fetching the version contents..." -ForegroundColor Yellow
            #$_ | Get-Member
            Write-Host "Version Id: "$_.VersionLabel ", Comment: " $_.Comments ", Created: " $_.Created ", By: " $_.CreatedBy
            #$versionContents = New-Object System.Collections.Generic.List[Microsoft.SharePoint.Client.DocumentSet.DocumentSetVersionItem]
            $versionContents = [System.Collections.Generic.List[Microsoft.SharePoint.Client.DocumentSet.DocumentSetVersionItem]]$_.GetDisplayContents();
            $fieldValues = [System.Collections.Generic.List[Microsoft.SharePoint.Client.DocumentSet.DocumentSetVersionField]]$_.GetDisplayFields();
            $ctx.ExecuteQuery()
            #Write-Host $versionContents[0]
            #$versionContents[0] | Get-Member
            write-host "Found (" $versionContents.Count ") items in this doc set verion:"
            $versionContents | %{ write-host "-- ItemUrl:" $_.ItemUrl ", VersionLabel:" $_.VersionLabel ", InternalId: " $_.InternalId}
            #$fieldValues.Count
            write-host "Field values found in this version:"
            $fieldValues | %{ Write-Host "-- Title: " $_.Title ", Value: "$_.FormattedValue }
            Write-Host ""
        }
    }
    else {
        $docSetItemVersions.Add($true, "v1")
        $ctx.ExecuteQuery()
    }
    write-host ""
    write-host ""
} 
 
$ctx.Dispose()

Ensure you have latest SPO CSOM dlls.
Here is my PS version:
❯ $PSVersionTable

Name Value

---

PSVersion 5.1.19041.608
PSEdition Desktop
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
BuildVersion 10.0.19041.608
CLRVersion 4.0.30319.42000
WSManStackVersion 3.0
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1

Could you please provide JSOM version too?