@Cybermen I think you are over-thinking this. RetroPie is updated incrementally. Every few days. Sometimes twice in a day. Only a few minor changes happen between each version. Even between 4.1.x and 4.2. It is the stock image that is updated to the "new version" That was previously last done back in November 16. The new image is 4.2 but even if you install that updates have been implemented since that version of the image was done. The last update for example was 2 days ago.

Which system? When you post about a problem try to be specific. I think its the MAME games who don't work? You did update the emulator which requires a newer romset. You need to rebuild the romset to the required version for the emulator and it will work.

Please read this article and you'll fix it

https://retropie.org.uk/docs/Validating,-Rebuilding,-and-Filtering-Arcade-ROMs/

@tribunal88 only by following progress on github etc.

@erikzann Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

You are probably not connected to the internet.

@Kristopherson05 you will need to redownload.

@BuZz
Thanks a lot, for your work. it's done and it works !!!
thanks ;)

@BuZz said in Re-download Optional Packages?:

@billybag You removed part of the RetroPie-Setup script ?

cd ~/RetroPie-Setup git reset --hard

i deleted all things Kodi from the SD Card. Been doing a lot of dumb things this holiday season.

anyway, have not tried the 'git reset --hard' command but will.

EDIT: That worked! Deffinitely bookmarking this