SharePoint 2013 Search CU Information

This list includes details of SharePoint Server 2013 Cumulative Updates, with a focus on fixes and features related to Search.

Releases are shown in reverse chronological order (i.e. the newest first, at the top of the list).  SharePoint Server links only are shown, though there are corresponding descriptions for SharePoint Foundation.

All the following Cumulative Updates require SharePoint Server 2013 Service Pack 1.

Release Name

Build Number

Description of Fixes or Features

Cumulative Update KB Article

February 2016 CU







15.0.4797.1001

Several fixes in the search subsystem, including a content source crawl consuming high CPU, incorrect ranking calculations, and unexpected deletions when content processing limits are exceeded.

https://support.microsoft.com/kb/3114726



January 2016 CU







15.0.4787.1000

Several fixes in the query interface and spelling suggestions, including one for Turkish letters. This update corrects a problem with outbound query federation to the SharePoint Online search index, introduced in a previous CU.

https://support.microsoft.com/kb/3114497



December 2015 CU







15.0.4779.1000

Several fixes in People Picker, failed crawls, refiners based on taxonomy trees returning no results. This update will cause outbound query federation to the SharePoint Online search index to stop working.

https://support.microsoft.com/kb/3114345









November 2015 CU

15.0.4771.1000

Fixes indexing of large (>100MB) files if SSA setting MaxDownloadSize is increased.  This update will cause outbound query federation to the SharePoint Online search index to stop working.

http://support.microsoft.com/kb/3101362

October 2015 CU

15.0.4763.1000

Cloud SSA (aka Cloud Hybrid Search) updated, plus security updates

http://support.microsoft.com/kb/3085492

September 2015 CU

15.0.4753.1003

Fixes for several search issues, plus update of Cloud Hybrid Search functionality

http://support.microsoft.com/kb/2986213

August 2015 CU

15.0.4745.1000

Initial release of Cloud Hybrid Search (aka Cloud SSA), plus numerous search fixes and security updates.

http://support.microsoft.com/kb/3055009

July 2015 CU

15.0.4737.1000

Support long (4000 character) URLs in Analytics database and several other search fixes

http://support.microsoft.com/kb/3054937

June 2015 CU

15.0.4727.1001

Fix for the Search Service Application (SSA) consuming a remote Managed Metadata Service along with other crawl and query result issues, plus other SharePoint fixes and updates.

http://support.microsoft.com/kb/3054866

May 2015 CU

15.0.4719.1002

Fixes several language-related search result issues and a fileshare crawl bug, along with multiple security updates.

http://support.microsoft.com/kb/3039780

April 2015 CU

15.0.4711.1000

Search issues including continuous crawl, refiner sliders and search analytics disk usage are resolved, along with an important security fix.

http://support.microsoft.com/kb/2965266

March 2015 CU

15.0.4701.1001

Several search related fixes and critical security fixes for Office products.

http://support.microsoft.com/kb/2956166

February 2015 CU

15.0.4693.1001

PDF filter and query rule fixes, plus numerous SharePoint functionality, stability and performance enhancements.

http://support.microsoft.com/kb/2920804

The full SharePoint 2010 and 2013 products official release list is available on TechNet.