Exchange Requirements for Office 365 Hybrid Deployments

The Exchange Online service included as part of an Office 365 tenant is based on Exchange Server. When the Office 365 tenant is upgraded and the tenant version changes, the version of Exchange Online also changes. Following is specific information about tenant versions currently available:

• Office 365 tenant version v14   Office 365 tenant version 14 includes the Exchange Online service that is based on Exchange 2010. This tenant version is identified by version number 14.0.000.0 and higher.
• Office 365 tenant version v15   Office 365 tenant version 15 includes the Exchange Online service that is based on Exchange 2013. This tenant version is identified by version number 15.0.000.0 and higher.

Note:

If you’re unsure what version of the Office 365 tenant is configured as part of your hybrid deployment, see the Verify Office 365 tenant version and status section later in this topic.

The Office 365 tenant version and each Exchange-based hybrid deployment requirements are listed in the following table. �

On-premises environment

Exchange 2010-based hybrid with tenant version v14

Exchange 2010-based hybrid with tenant version v15

Exchange 2013-based hybrid with tenant version v15

On-premises environment	Exchange 2010-based hybrid with tenant version v14	Exchange 2010-based hybrid with tenant version v15	Exchange 2013-based hybrid with tenant version v15
Exchange 2013 (CU1)	Not supported *1	Not applicable	Supported
Exchange 2010 SP3	Supported	Supported	Supported *5
Exchange 2010 SP2	Supported	Not supported *2	Not supported
Exchange 2010 SP1	Supported	Not supported *2	Not supported
Exchange 2007 SP3 RU10	Supported *3	Supported *4	Supported *5
Exchange 2007 SP3	Supported *3	Not Supported	Not supported
Exchange 2003 SP2	Supported *3	Supported4	Not supported

Note:

1 Blocked in Exchange 2013 setup 2 Tenant upgrade notification provided in Exchange Management Console 3 Requires at least one on-premises Exchange 2010 SP2 server 4 Requires at least one on-premises Exchange 2010 SP3 server 5 Requires at least one on-premises Exchange 2013 (CU1) or greater server

Note:

1 Blocked in Exchange 2013 setup 2 Tenant upgrade notification provided in Exchange Management Console 3 Requires at least one on-premises Exchange 2010 SP2 server 4 Requires at least one on-premises Exchange 2010 SP3 server 5 Requires at least one on-premises Exchange 2013 (CU1) or greater server

Verify Office 365 Tenant Version and Status If you’re not sure which version of the Office 365 tenant is currently configured with your hybrid deployment, follow the steps below to verify the version of your Office 365 tenant:

• Connect to the Office 365 tenant using remote Windows PowerShell. For step-by-step connection instructions, see Connect Windows PowerShell to the Service.

• After connecting to the Office 365 tenant, run the following command.

  Get-OrganizationConfig | Format-List AdminDisplayVersion Note the version of your Office 365 tenant:

  • AdminDisplayVersion parameter value displays the current Office tenant version. For example, “0.10 (14.0.500.5)” for a v14 tenant or “0.20 (15.0.100.1)” for a v15 tenant.

• Disconnect from the Office 365 tenant remote PowerShell session. For step-by-step disconnection instructions, see Connect Windows PowerShell to the Service.

Read more @ > https://technet.microsoft.com/en-us/library/jj945383(v=exchg.141).aspx