A brave new world for Exchange 2016 cmdlet reference topic delivery and updates
Exchange Team explains how the update-exchangehelp cmdlet will work on Exchange Server 2016 where updates for the cmdlets will be done in English first, and it will be faster for non-english systems to get updates without waiting for the next CU to get an update.
Update-ExchangeHelp is an Exchange cmdlet that installs the latest available Exchange cmdlet reference help topics on the Exchange server for use in the Exchange Management Shell (Get-Help <Cmdlet>). Although there are ostensibly Windows PowerShell cmdlets for this same task (Update-Help and Save-Help), they don’t work with the Exchange Management Shell.
Read more at source: http://blogs.technet.com/b/exchange/archive/2015/08/24/a-brave-new-world-for-exchange-2016-cmdlet-reference-topic-delivery-and-updates.aspx