We have released a new version of Minecraft 1.8, called Minecraft 1.8.6, which is now available for download in your launcher. This release fixes a few reported security issues, in addition to some other bug fixes.

This update fixes an issue that was not fixed completely in Minecraft 1.8.5.  This version is fully compatible with all previous 1.8 versions, but it is still highly recommend to update to Minecraft 1.8.6 as soon as possible.