I've used Arch for years now---on the same install. The only thing that has been unstable about my system is the function of my USB A/D converter (microphone). Other than that, there has never been an upgrade where something broke. Now, sure, it is wise to check the Arch homepage before you upgrade, just in case some action needs to be taken: that's something that you don't really have to do with, e.g., Debian. But if you do that, as I've done, you probably will never have major problems upgrading.
In fact, I actually dread Ubuntu updates far more ... I've had them break various and sundry things about my (previously-working) system. In my experience, at least, Ubuntu is far less stable than Arch. With that said, though, I haven't used Ubuntu since 12.04 and 10.04 before that, so I don't know how it fares anymore.
In fact, I actually dread Ubuntu updates far more ... I've had them break various and sundry things about my (previously-working) system. In my experience, at least, Ubuntu is far less stable than Arch. With that said, though, I haven't used Ubuntu since 12.04 and 10.04 before that, so I don't know how it fares anymore.