Is this safe to do?
I like to make sure my software is complete, but do not want to ruin the beautiful setup of elementary OS.
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I would check Software & Updates, Updates. Where it says: Notify me of new Ubuntu Version:
Is it set to Never? or something else? Set it to Never.
I highly doubt that that is from elementary, more like something from Ubuntu. Don't do that, it can and will kill your current elementary OS installation.