How do I update JSON file using PowerShell

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Here is a way :

$a = Get-Content 'D:\temp\mytest.json' -raw | ConvertFrom-Json
$a.update | % {if($_.name -eq 'test1'){$_.version=3.0}}
$a | ConvertTo-Json -depth 32| set-content 'D:\temp\mytestBis.json'

According to @FLGMwt and @mikemaccana I improve the ConvertTo-Json with -depth 32 because the default depth value is 2 and for object deeper than 2 you will receive class informations in spite of objects.

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