PeopleSoft Community Network
Tech Update - PeopleSoft Certified with Internet Explorer 11 (Doc ID 1672394.1)
"May 14, 2014. Internet Explorer 11 is now certified with PeopleTools 8.53. The minimum patch level supported with IE 11 is PT 8.53.11. The certification can be found in the certification database on My Oracle Support (MOS). PeopleTools 8.52 has been certified as well, with PT 8.52.22 being the minimum supported level."
My interpretation of this is that IE11 is now certified in standard mode with 8.53.11 and 8.52.22. Running in compatibility mode is not required.
***ARTICLE UPDATE*** 7 May 2014