AzureStorage_PS_PromotePreviousVersionAsCurrentVersion.ps1

#The below PowerShell Script will promote the previous versions as current version that matches the prefix match within the container. 

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#The sample scripts are not supported under any Microsoft standard support program or service. 
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Set-AzContext -Subscription AddsubscriptionID
$storageAccount = Get-AzStorageAccount -ResourceGroupName "AddResourceGroupName" -Name "AddStorageAccountname"
$containerName = "AddContainerName"

$ctx = $storageAccount.Context

    $totalblobCount = 0

    $blob_Token = $null

    write-host "Processing container $containerName...   " -ForegroundColor magenta

        $listOfBlobs = Get-AzStorageBlob -Container $containerName -Prefix "AddPrefix" -IncludeDeleted -IncludeVersion -Context $ctx 
        if($listOfBlobs -eq $null) {
            break
        }

        $latestBlobs = $listOfBlobs | Group-Object Name | ForEach-Object { $_.Group | Sort-Object LastModified | Select-Object -Last 1 } | Where-Object { $_.IsLatestVersion -ne $true -and $_.VersionId -ne $null}

        foreach ($blob in $latestBlobs) {

            $totalblobCount++
            $blob | Copy-AzStorageBlob `
                        -DestContainer $containerName `
                        -DestBlob $blob.Name
        }
write-host "Job completed with blobs versions found : $totalblobCount"