Some trivia about Outlook version numbers;

• What are the version numbers of Outlook and their released names?
• Why does it start with version 8.0?
• Why is there no version 13.0?
• Why isn’t Office 2019 version 17.0?
• What are the build numbers of the Service Pack releases?

Version Names and Version Numbers

The version number of Outlook relates to the first 2 numbers of the entire build number as reported in Outlook’s About dialog. side from Outlook 98, this second number is always 0.

How to find your version of Outlook on a phone or tablet 1. Open Outlook, and then tap the button at the top left to see the navigation menu. How to turn on automatic updates for Outlook. Open Microsoft Outlook and the click 'File.' In the navigation pane, click 'Office Account.' Select 'Update Options.'

You can look up the build number of Outlook in the following way:

• Outlook 2007 and previous
  Help-> About Microsoft Office Outlook
• Outlook 2010
  File-> Help-> About-> Additional Version and Copyright Information
• Outlook 2013, Outlook 2016, Outlook 2019 and Microsoft 365
  File-> Office Account-> About Outlook

An overview of the released versions of Outlook and their version numbers;

This version number is used for stamping the installation files of Outlook and is also used in the Registry, with the most known Registry hive being;
HKEY_CURRENT_USERSoftwareMicrosoftOffice<version>Outlook Download gcc usb devices driver.

Office 2019 is not version 17.0?

As you can see, since Outlook 2016 the version number is stuck at 16.0 and Office 2019 didn’t become version 17.0. This is because Office 2016 and Office 2019 now use the same code-base as Microsoft 365 and your license determines which features are enabled.

At the same time, this change also increases (or to be more technically correct; doesn’t decrease) compatibility with add-ins and external applications which explicitly look at the version number.

Background info

Outlook was first introduced in Office 97 which had the version number 8.0. The version numbering of Office itself skips number 5 and 6. This is because since Office 95 (version 7.0), all Office applications started sharing the same version number. Word at the time was in its 6.0 version and with that it had the highest version number. Its next version for Office 95 would become version Word 7.0 so that version number was taken for the entire Office 95 suite.

Outlook 97 replaced the applications Schedule+ and Exchange Client which were previously bundled with respectively Office and Exchange Server.

Before Outlook 97 there were already clients called Outlook bundled with Exchange. Their names are; Outlook for MS-DOS, Outlook for Windows 3.x, and Outlook for Macintosh. After “Microsoft Outlook 2001 for Macintosh” came Entourage which offered Exchange connectivity for Mac users. All these versions have their own version numbers which have nothing to to with the current versioning scheme.

Outlook 98 was initially a free download and later remained as a free upgrade for Outlook 97 users adding new features – most notably support for non-Exchange accounts. Its availability has been pulled shortly before the release of Outlook 2000. As its release was outside the normal release cycle of the Office suites (to which the version numbers have been tied), the version number of Outlook 98 could not be a full version higher than Outlook 97.

No version 13.0

At the MVP Summit in 2009, Steve Ballmer admitted (to little surprise) that there won’t be a version 13.0 for any of the Office applications because of “plain old superstition”. However, he also said that there is no “company policy for superstition” and that other product groups may release a 13.0 version of their product in the future. Obviously this superstition isn’t going to be localized for other markets where they would fear the number 14.

Other current uses of the Outlook brand

Outlook on the Web is the Web-based e-mail interface of Microsoft Exchange Server. Initially it was called Exchange Web Connect but soon replaced with Outlook Web Access. In Exchange 2010 and Exchange 2013 it is called Outlook Web App and was renamed to Outlook on the Web with Exchange 2016. As it is a part of Exchange, the Outlook Team doesn’t develop it. However, the release cycle of Exchange is synchronous to the Office Suite and shares the same version number since Office 2010.

Since Office for Mac 2011, Outlook replaced Entourage but has a completely different development team (they are even located in a different State!) and originally another development cycle. While it does share the same version number, originally, Office for the Mac is released 1 year after its Windows counterpart. Drivers generic others. This is no longer the case since Office 2019.

In August 2012, it was been announced that Outlook.com would replace Hotmail. While Outlook.com takes over some design elements of Outlook 2013 and OWA 2013, this was also managed by a completely different team. Taking Outlook.com into production is part of the “Wave 15” project which again matches the version number of the Office releases. As of mid-2017, all Outlook.com mailboxes are hosted by the Microsoft 365 platform and is very similar in look and feel to the corporate Outlook on the Web experience as part of Exchange Online. For various new end-user features and changes, Outlook.com often is used as a test-bed for the corporate version.

Build Numbers

The exact build number of Outlook that is shown in the About dialog relates to which updates have been installed. This often helps with troubleshooting and is also referred to as “patch level”.

Below you’ll find an overview of some of the major build numbers. Easysync driver.

How To Find Outlook Version Office 365

This document describes how you can determine the version of Office you have installed on your computer. These instructions assume you already have an Outlook profile/account configured. If you do not have Outlook configured, you can substitute Outlook with any of the other Office applications in the steps below.

How To Find Outlook Version In Office 365

Important: To get the latest features/updates, it is recommended that you install the Microsoft Office 365 ProPlus/Subscription/enterprise version of Office/Outlook. The Professional Plus/2016/2019/Volume License version is only receiving security updates.

• Note - Windows 7 End of Support and Office 365 ProPlus
  • 
    

    As announced previously, Windows 7 will be out of support after January 14, 2020. Because Office 365 is governed by the Modern Lifecycle Policy, customers are required to stay current as per the servicing and system requirements for the product or service. This includes using Office 365 ProPlus on a Windows operating system that is currently in support.

    Using Office 365 ProPlus on older, unsupported operating systems may cause performance and reliability issues over time. If your organization is using Office 365 ProPlus on devices running Windows 7, we strongly recommend your organization move those devices to Windows 10.

    [How does this impact me?]

    Even though Windows 7 will no longer be supported after January 2020, we understand Office 365 customers may need more time in their migration to a supported operating system. Through January 2023, Microsoft will provide security updates for Office 365 ProPlus on Windows 7. But, during that time, as long as the device is still running Windows 7, Office 365 ProPlus won’t receive any new features updates.

    [What should I do to prepare for this change?]

    We recommend that organizations migrate to Windows 10 or a supported operating system before the end of support date on January 14, 2020 in order to continue receiving new feature updates to Office 365 ProPlus. Make sure to discuss this process with your local IT staff before making changes to your system.

    We’ll be providing more information by January about how to get security updates for Office 365 ProPlus on devices running Windows 7 after support for Windows 7 ends.

    Note: This information also applies to Office 365 Business which is included in business plans such as M365 Business and Office 365 Business Premium, and to desktop versions of Project and Visio.

    For more information, please see this support article and this FAQ.

Select your operating system:

Windows OS

1. Start Outlook/Word or any other Microsoft Office application.
2. On the File menu, click Office Account or Account.
3. Under Product Information, you'll see the general version of Office installed on your computer.
   
   This version was downloaded/installed from your Office
   365 subscription - you must have an active Office 365
   ProPlus license/subscription to run this version.

   
   This version was downloaded/installed from Campus Software Library (CSL).
4. For complete version, click About Outlook/Word. A new window will appear. The top will display the build information and if the client is 32- or 64-bit.
5. Click left arrow to return to Outlook/Word.

Mac OS

How To Find Outlook Version

1. Start Outlook/Word or any other Microsoft Office application.
2. From the Outlook menu on the Apple menu bar, select About Outlook.
3. You will be presented with the 'About Outlook/Word' screen:
   
   This version was downloaded/installed from your Office 365
   subscription - you must have an active Office 365 ProPlus
   license/subscription to run this version.

   
   This version was downloaded/installed from Campus Software
   Library (CSL).
4. Click red X to return to Outlook/Word.

How To Find Your Outlook Version

See Also: