Microsoft has released CU 7 for App Fabric 1.1 .Please find the link below . Its always recommended to keep your AppFabric deployments associated with SharePoint 2013 on a recent patch.
https://support.microsoft.com/en-us/kb/3092423
As you all know , patching App Fabric is important for Distributed cache to work fine and also for the social features in My site .
Issue with SharePoint 2013 latest CU’s:
The October, November and December 2015 CUs have a regression in them that causes outbound query federation with Office 365 to stop working.This would be corrected in the January 2016 CU .
“This update will cause outbound query federation to stop working. Outbound query federation returns federated results to SharePoint Server 2013 Search services when SharePoint Server 2013 Search services query the SharePoint Online search index. This issue will be fixed by the January, 12, 2016, cumulative update for SharePoint Server 2013.”
Vignesh's SharePoint Thoughts 