WebCenter Content 11gR1 dot8 Bundle Patch 11 (220.127.116.11.11) was released on April 14, 2015.
This patch can be downloaded from Patch 20624268: WEBCENTER CONTENT BUNDLE PATCH 18.104.22.168.11.
Bundle patches are collections of controlled, well tested critical bug fixes for a specific product which may include security contents and occasionally minor enhancements. These are cumulative in nature meaning the latest bundle patch in a particular series includes the contents of the previous bundle patches released. A suite bundle patch is an aggregation of multiple product bundle patches that are part of a product suite.
For further information, please see the following document:
Links to One-Off/Interim and Fully Released Patches for Oracle WebCenter Content, 11g (MLR numbers/links) (Doc ID 1509747.1)
At this time, there are no plans for another WebCenter Content 22.214.171.124.x Bundle Patch release.