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Get the latest info on feature, bug fix and security updates for Office 365 for Windows as they roll out from Microsoft. Now updated for Version 1709 (Build 8528.2139), released on Oct. 16, 2017.

Office 365 subscribers always have the latest version of Microsoft Office — currently Office 2016. They also get more frequent software updates than those who have purchased Office 2016 without a subscription, which means subscribers have access to the latest features, security patches and bug fixes. But it can be hard to keep track of the changes in each update and know when they’re available. We’re doing for you, so you don’t have to.

Following are key updates to Office 365 for Windows since Office 2016 was released in September 2015 — all the 2017 updates and the most important ones from 2016 and late 2015, with the latest releases shown first. We’ll add info about new updates as they’re rolled out.

Note: This story covers updates released to regular Office 365 for Windows subscribers. If you’re a member of Microsoft’s Office Insider preview program or want to get a sneak peek at upcoming features, see the company’s “What’s new for Office Insiders” page.

Version 1709 (Build 8528.2139)

Release date: October 16, 2017

This non-security feature update adds a few minor capabilities and fixes a number of bugs. Word gets a SharePoint property panel that lets you display and edit SharePoint document library column values from within a document via a new button on the View tab. In PowerPoint, you can now run a slideshow using a digital pen on a touchscreen device — a feature that requires the Windows 10 Fall Creators Update. Among the bugs fixed is one in which Project can crash when going to reports that contain several images.

Get more information about Version 1709 (Build 8528.2139) by going to the Office 365 client update channel release page: On the left side of the screen choose the Monthly channel and select “2017” and “October.”

Version 1708 (Build 8431.2107)

Release date: October 10, 2017

This security update plugs holes in Outlook, Word and the entire Office suite.  Outlook gets two fixes, one for a security feature bypass vulnerability and another for an information disclosure vulnerability. Word gets one security fix, for a memory corruption vulnerability, and the entire suite gets one for a remote code execution vulnerability.

What IT needs to know: Because of the security fixes in this update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

Get more information about Version 1708 (Build 8431.2107) by going to Office 365 client update channel release page. On the left side of the screen, choose the Monthly channel and select “2017” and “October.”

Version 1708 (Build 8431.2094)

Release date: October 4, 2017

This non-security, non-feature update fixes a wide variety of bugs – 10 in Excel alone. Among the Excel fixes is one where Excel crashes when opening an .XLL file, and another in which the AutoSave toggle isn’t visible. In Outlook, one of the issues fixed is when Outlook crashes when the user is trying to set up a new account and they close the window without completing the account setup. Word, PowerPoint and Access also get a variety of miscellaneous fixes.

And several issues were fixed with the entire Office suite, including one in which Office file properties aren’t displayed in File Explorer, and another in which Office add-in buttons disappear from the ribbon when there is a second document open.

Get more information about Version 1708 (Build 8431.2094) by going to Office 365 client update channel release page: On the left side of the screen choose the Monthly channel and select “2017” and “October.”

Version 1708 (Build 8431.2079)

Release date: Sept. 18, 2017

This update adds new features and fixes a variety of bugs. You can now add 3D objects to Excel, Word, Outlook and PowerPoint that you can rotate 360 degrees and tilt up and down. Excel, Word and PowerPoint also get new ink effects with metallic pens including rainbow, galaxy, lava, ocean, gold and silver. Access has two new connectors to Microsoft Dynamics and Salesforce. A number of miscellaneous, minor bugs have been fixed in Project and Skype, including one in Project in which the status field doesn’t always calculate correctly for summary tasks, and one in Skype in which unread messages in persistent chat rooms are marked as read when you click IM conversation tabs.

Get more information about Version 1708 (Build 8431.2079) by going to Office 365 client update channel release page: On the left side of the screen choose the Monthly channel and select “2017” and “September.”

Version 1707 (Build 8326.2107)

Release date: Sept. 12, 2017

This update focuses primarily on security issues, and includes security patches for Excel, PowerPoint, Skype and the entire Office suite. Among the fixes are two that have to do with memory corruption vulnerabilities in Excel, and two with remote code execution vulnerabilities in PowerPoint. Excel and PowerPoint also get minor, non-security patches.

What IT needs to know: Because of the security fixes in this update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

Get more information about Version 1707 (Build 8326.2107) by going to Office 365 client update channel release page: On the left side of the screen choose the Monthly channel and select “2017” and “September.”

Version 1707 (Build 8326.2096)

Release date: Aug. 29, 2017

This extremely small non-security update fixes only a single issue, in which end-user defined characters (EUDCs) that are linked to fonts fail to display.

Get more information about Version 1707 (Build 8326. 2096) by going to Office 365 client update channel release page. On the left side of the screen, choose the Current channel and select “2017” and “August.”

Version 1707 (Build 8326.2087)

Release date: Aug. 24, 2017

This very minor non-security update fixes one issue in Visio and three that affect the entire Office suite. In Visio, the bug squashed occurred when COM add-ins don’t receive document opened events when a Visio file is opened by a double-click on a file icon or file name. The overall Office fixes include one in which hovering over a Common Control with a tooltip on it caused the application you’re using to crash.

Get more information about Version 1707 (Build 8326. 2087) by going to Office 365 client update channel release page. On the left side of the screen, choose the Current channel and select “2017” and “August.”

Version 1707 (Build 8326.2076)

Release date: Aug. 18, 2017

This very minor non-security update fixes two issues in Outlook and two in Word. In Outlook, it fixes a problem that causes intermittent crashes when opening Outlook, and another that makes it impossible to configure an IMAP account in Outlook. In Word, it fixes a problem that causes Word to crash when recovering cloud-based files, and another in which Word closes unexpectedly when loading the Grammarly add-in.

Get more information about Version 1707 (Build 8326.2076) by going to Office 365 client update channel release page. On the left side of the screen, choose the Current channel and select “2017” and “August.”

Version 1707 (Build 8326.2073)

Release date: Aug. 11, 2017

This extremely minor non-security update fixes only one Excel issue, in which a data refresh doesn’t succeed or Excel crashes when using data from a SQL Server Analysis Services server and the locale of Excel and the locale of the SQL Server Analysis Services server differ.

Get more information about Version 1707 (Build 8326.2073) by going to Office 365 client update channel release page. On the left side of the screen choose the Current channel and select “2017” and “August.”

Version 1705 (Build 8201.2171)

Release date: Aug. 8, 2017

This extremely minor non-security update fixes only three small issues, including one that prevents the What’s New dialog from appearing, and another with how some program files are signed, causing anti-virus programs to flag those files and have problems protecting or accessing data under Windows Information Protection (WIP). Also fixed is an Outlook issue that occurs when the scrollbar is dragged to move through a list of messages.

Get more information about Version 1705 (Build 8201.2171) by going to Office 365 client update channel release page. On the left side of the screen choose the Current channel and select “2017” and “August.”

Version 1707 (Build 8326.2062)

Release date: July 31, 2017

This extremely minor non-security update fixes only one problem, an issue with Skype for Business in which non-English characters in chat and chat history are garbled.

Get more information about Version 1707 (Build 8326.2062) by going to the Office 365 client update channel release page. On the left side of the screen choose the Current channel and select “2017” and “July.”

Version 1707 (Build 8326.2059)

Release date: July 28, 2017

This extremely minor update fixes an issue with how some program files are signed, causing antivirus programs to flag those files as potentially dangerous. It also fixes problems protecting or accessing data under Windows Information Protection (WIP).

Get more information about Version 1707 (Build 8326.2059) by going to the Office 365 client update channel release page. On the left side of the screen choose the Current channel and select “2017” and “July.”

Version 1707 (Build 8326.2058)

Release date: July 27, 2017

The big news in this feature update is that Excel finally gets the collaborative editing features that Word and PowerPoint have had since Office 2016 was released nearly two years ago, in September 2015. People can now simultaneously work on a workbook, seeing each other’s edits. Excel also gets an AutoSave button, which when turned on automatically saves workbooks. PowerPoint gets the same feature. Also new in PowerPoint is that slides that have been modified by others are highlighted in a color, to make it easier to see at a glance which have been changed.

Other Office applications get a variety of minor additions, such as data connectors in Access now being able to import data from or link to data stored in Microsoft Dynamics or Salesforce. In Word, you can now create and edit equations using LaTeX syntax.

What IT needs to know: This update includes several security fixes for Outlook. Because of the security fixes, the update should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

Get more information about Version 1707 (Build 8326.2058) by going to Office 365 client update channel releases page. On the left side of the screen, choose the Current channel and select “2017” and “July.”

Version 1706 (Build 8229.2103)

Release date: July 19, 2017

This non-security update fixes a variety of very minor bugs, including one in Excel in which errors appear when trying to save changes to documents synced with the OneDrive client. The update also fixes a bug in Word that prevents shapes within the drawing canvas from being rotated.

Get more information about Version 1706 (Build 8229.2103) by going to Office 365 client update channel releases page. On the left side of the screen, choose the Current channel and select “2017” and “July.”

Version 1706 (Build 8229.2086)

Release date: July 13, 2017

This security update fixes two security vulnerabilities in Excel and one in the Office suite overall. Both holes in Excel are memory corruption vulnerabilities. Attackers who exploit either could run arbitrary code as the current user. If the current user is logged on with administrative user rights, an attacker could take control of the system. The overall Office hole is a remote code execution vulnerability, which would also allow attackers to take control of the system if the current user is logged on with administrative user rights.

What IT needs to know: Because this is a security update, it should be applied soon. Over the next few days, check for reports about problematic issues, and if all seems well, apply the update.

Get more information about Version 1706 (Build 8229.2086) by going to Microsoft’s Office 365 client update channel releases page: On the left side of the screen, choose the Current channel and select “2017” and “July.”

Version 1706 (Build 8229.2073)

Release date: June 28, 2017

This feature update lets you choose a personal set of pens, highlighters and pencils in Word, Excel and PowerPoint. Choose them for one of the applications, and the same ones become available in the other two. In addition, when you insert pictures from the internet in Word, Excel and PowerPoint, attribution information for the pictures is inserted along with the pictures themselves.

In PowerPoint, when you create a chart, Designer will recommend designs for it based on the slide type and content in it. Excel gets a small Ribbon addition: You can now insert superscripts or subscripts by choosing Effects from the Font group on the Ribbon. You can also add subscripts and superscripts to the Quick Access toolbar. In addition, Outlook has gotten a new wizard for setting up new email accounts.

Get more information about Version 1706 (Build 8229.2073) at Microsoft’s Office 365 client update channel releases page: On the left side of the screen, choose the Current channel and select the year and month of the release.

Version 1705 (Build 8201.2102)

Release date: June 13, 2017