I authored a white paper on the topic of Oracle EPM / Hyperion 18.104.22.168 coming out of Premiere and Extended Support. You may have attended one of my ODTUG webinars or read some of my blog posts on this subject. But here it is all in one place!
Download it and share if you need to give higher-ups a "push" to get a budget approved to either upgrade to 11.2 or move to the EPM Cloud.
Safe Harbor applies to my statement below:
The patching sunset date for 22.214.171.124 is currently set to DEC 2021. 126.96.36.199 then moves to Lifetime/Sustaining support starting JAN 2022. Oracle could potentially change this due to so many of their customers having project delays due to COVID-19, but that is anyone's guess. As always, look at Oracle's official site for the latest direction on this subject.
Regardless of what Oracle decides, you will want to either move to EPM 188.8.131.52 or EPM Cloud before Microsoft ends support for Internet Explorer 11. I do not expect any sort of patch that would pack-port 184.108.40.206's support for Microsoft Edge down to 220.127.116.11.