Diagnostics.hostVersion property (JavaScript API for Office)

apps for Office

Gets a string that represents the version of either the host application or the Exchange Server.

Last modified: March 04, 2015

Note Note

The name "apps for Office" is changing to "Office Add-ins". During the transition, the documentation and the UI of some Office host applications and Visual Studio tools might still use the term "apps for Office".

Hosts:Outlook

App type: Mail

Available in requirement sets

Mailbox

Last changed in Mailbox

1.0

Applicable Outlook modes

Compose or read

See all support details

Office.context.mailbox.diagnostics.hostVersion

A string that represents a version number, depending on the current host application.

If the mail app is running on the Outlook rich client, the hostVersion property returns the version of the host application, Outlook. In Outlook Web App, the property returns the version of the Exchange Server. An example is the string "15.0.468.0".

A checkmark (√) in the following table indicates that this property is supported in the corresponding Outlook host application. An empty cell indicates that the Outlook host application doesn't support this property.

For more information about Office host application and server requirements, see Requirements for running apps for Office.

Supported hosts, by platform

Office for Windows desktop

Office for Windows RT

Office Online
(in browser)

OWA for Devices

Office for Mac

Outlook

√ (Read mode only)

Available in requirement sets

Mailbox

Minimum permission level

ReadItem

App types

Mail

Library

Office.js

Namespace

Office

Version

Changes

1.0

Introduced

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