I am waiting on confirmation of HFW structure or OFW version used from
@zecoxao before making final packages, to know if any SPRX files need 4.88 replacements, due to silk_webkit.sprx swap. You can go to the GitHub page (
https://github.com/PS3Xploit/PS3HEN) to get files and host HTML/JS yourself. It will install PS3HEN 3.0.3 by using a pre-release package that shares the same structure as 4.87. If any SPRX files get added to or removed from final packages, you can use the XMB updater under HFW Tools or download final packages and/or developer zips when finalized, like normal.
...or wait until all packages are done and tested
EDIT #1: Self-Hosting HTML/JS/P3T files (GitHub), including debug version, under /html/hen_installer/offline_local
EDIT #2:
i did a folder compare and only 2 files were different besides webkit. mtpinitiator_plugin.sprx and explore_category_tv.sprx