The Oracle 188.8.131.52 Instant Client libraries are now available on Linux x86 and x86_64 platforms from the Instant Client home page. And they'll soon be uploaded on ULN for customers with Oracle Linux support to install via the update server.
If you are one of the (not so?) few users of command line PHP then you might want to grab the new client because it has Oracle bug 9891199 fixed. You'll also need OCI8 1.4.3 from PECL. This combination together resolve a process shutdown delay that irked some command line users. You will still be able to connect back to older versions of the DB, as is normal in the Oracle world.
The 184.108.40.206 patchset for the Oracle Database itself is available in Patch 10098816 from Oracle Support. Note ID 1189783.1 points out that this is a full database release and does not need to be applied on top of Oracle 220.127.116.11. According to the note this is the new patching strategy going forward.