The bug fixing support for Oracle Database 188.8.131.52 will end soon.
From my visits in the past months seeing some really large customer environments with easily over 1000 production databases each I can tell you that there may be many Oracle 184.108.40.206 installations out there. So maybe not everybody is aware of this fact.
It’s hard to believe but the Error Correction Support for Oracle Database 220.127.116.11 will end shortly on August 27,2015.
See MOS Note:742060.1 for further details.
And does it need to be said?
Yes, you can – of course – upgrade directly to Oracle Database 18.104.22.168.