There is an 11i Post upgrade step in the Upgrade Guide E48834-18
There are 11i post-upgrade tasks listed on page 5-7 of the following document:
Oracle® E-Business Suite
Upgrade Guide
Release 11i to 12.2
Part No. E48834-18
Install online help (recommended)
Applies to 11i release level: All
TUMS step key: N/A
To install the American English online help, run the database portion of the online
help patch (u10201000.drv). It is located in $AU_TOP/patch/115/driver directory.
You must apply the American English online help patch driver
($AU_TOP/patch/115/driver/u10201000.drv) using AD Online Patching (adop) with
phase=apply hotpatch=yes and
options=nocopyportion,nogenerateportion,forceapply.
adop phase=apply patchtop=$AU_TOP/patch/115/patches=driver:u10201000.drv options=nocopyportion,nogenerateportion,forceapply hotpatch=yes