On the title screen (where Groudon appears before you press Start), look at the . You should clearly see the text "Ver. 1.4" printed there.
Competing against other players requires matching software versions. Patch Notes: What Changed in Version 1.4? pokemon omega ruby update 14 link
Improved asset loading times during heavy transitions, such as entering a Secret Base or initiating a Mirage Island encounter. On the title screen (where Groudon appears before
If you tell me what happens when you try to update, I might be able to help you fix it. pokemon omega ruby update 14 link
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What's the latest update even do?!?!?!? - Pokemon Omega Ruby
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