Improvements and fixes
This update fixes the following issue:
SharePoint Server 2013 is unable to crawl external sites that block HTTP 1.0 request. In this case, SharePoint Server 2013 would receive 403 HTTP response code from external sites. This update will enable SharePoint Server 2013 to crawl such external sites by sending HTTP 1.1 request instead of HTTP 1.0 request.
How to download and install the update
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and tmes may change when you perform certain operations on the files.