Hmmmm. Just installed 1.8.2. on my Vita and now upon ystarting RetroArch I only receive a crash with the following error message:
"An error has occured in the following application.
Saved Core File Succeeded.
After which I can only acknowledge the error and return to the Vita's main menu.
Halp, plz! :'(
Edit: Never mind that. I've reinstalled 1.8.1. and everything is running peachy again.
You need to delete all the data directory and install again to upgrade. And remember to copy the data directory again. I had forgot that the Retroarch install need this two steps: running the the apk and copying the data folder.