this post was submitted on 13 Nov 2025
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If you use Arch Linux, you’ve probably noticed that after a while, and especially after system updates, files with the .pacnew extension start showing up on your system. And since you’re reading this, that’s likely what brought you here: to figure out what these files are, why they appear, and what you’re supposed to do with them.

Well, you’ve come to the right place. In the lines below, I’ll try to explain everything clearly and straightforwardly. So, let’s start with the main question.

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[–] INeedMana@piefed.zip 7 points 1 day ago (1 children)

Yeah, pacdiff is the way. I run it after any upgrade so I don't have a lot to catch up

[–] 30p87@feddit.org 5 points 1 day ago (1 children)

Fuck me, I sometimes just do a find / -name "*.pacnew" and diff manually

[–] bjoern_tantau@swg-empire.de 4 points 1 day ago

I've never seen anything beat Gentoo's interactive diff and merge of config files. That's the only thing I miss from Gentoo and I have no ideas why other distributions haven't picked that up. It's perfect.

[–] Ooops@feddit.org 1 points 1 day ago* (last edited 1 day ago)

That article triggered an unexpected roller coaster of "there is something called vimdiff I never heard about?" to "no, there isn't because for me vim is just an alias for nvim" to "oh, it's actually just vim -d anyway..."