Microsoft Office 2013 Service Pack 1 (SP1) provides the latest updates for Office 2013. This service pack includes two kinds of fixes:
Previously unreleased fixes that are included in this service pack. In addition to general product fixes, these fixes include improvements in stability, performance, and security.
All the monthly security updates that were released through January 2014, and all the Cumulative Updates that were released through December 2013.
Overview of Office 2013 SP1 improvements
The following are the key areas of improvement that are offered by this SP1:
Improves compatibility with Windows 8.1.
Improves compatibility with Internet Explorer 11.
Improves compatibility with modern hardware, such as high-DPI devices and the precision touchpad.
Provides new apps for Office capabilities and APIs for third-party developers.
Outlook 2013 SP1
Provides support for task pane apps in Outlook 2013 to enable third-party developers to extend the compose experience for email messages and calendar items.
PowerPoint 2013 SP1
Provides ability to insert and use content apps in PowerPoint 2013 slides.
Issues that this service package fixes
This service package fixes the issues that are described in the following Microsoft Knowledge Base (KB) articles:
2919506 Can’t hear the first few words that a callee speaks when they answer a call in Lync 2013
2919507 The “Program Events” sound setting is reset to the default value after you restart Lync 2013
2919508 Can’t rotate the screen orientation of a video window in a Lync 2013 video conference on a Windows 8.1-based device
2919510 A pie chart clock icon appears in the “Conversations” tab as a meeting icon in Lync 2013
Microsoft Office 2013 Language Pack Service Pack 1