KB3213567 and KB3213574 are the Office 2013 July 2017 non-security updates released by Microsoft.
Update for Word 2013 (KB3213567)
This update applies to Office Home and Student 2013 RT as well, with the update from the Microsoft Download Center applying to the Microsoft Installer-based edition of Office 2013. This will not apply to the Office 2013 click-to-run editions, such as Microsoft Office 365 Home.
This update brings a few improvements for the Dutch version of Word 2013.
You can use Microsoft Update to download and install the update automatically, with a manual download and installation available from the Microsoft Download Center. You will not be able to install the updates in the Download Center on Office Home and Student 2013 RT, however.
In order to be able to apply this update, you need to have Microsoft Office 2013 Service Pack 1 installed on your machine.
Update for Skype for Business 2015 (Lync 2013) (KB3213574)
Microsoft also released an update for Skype for Business 2015 (Lync 2013) on July 5, 2017. The update features the new Skype for Business client with a version number of 15.0.4945.1000. The update fixes the issue in which users experience low Internet Explorer performance when the Skype for Business 2015 add-in for Internet Explorer is enabled.
Besides the release of the new client, the update brings a few fixes for a whole list of issues. Before you install it, make sure to check out the prerequisites.
Before you install the update, make sure to install Microsoft Office 2013 Service Pack 1 (KB2817430) on your machine.
Microsoft scanned all files for viruses and the company used the most up-to-date virus-detection software available when the support files were posted.
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