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Steam has now officially stopped supporting Windows 7, Windows 8, and Windows 8.1.
(www.theverge.com)
This is a most excellent place for technology news and articles.
I, for one, am glad that from a security standpoint that companies like Valve are stopping support and giving patches and stuff to people using such outdated operating systems. If you are forced to use an old OS for work because of software limitations, that's one thing, but there should be no reason you use an old OS as your daily driver if you ain't getting any more security updates and patches. I don't care how long it would take to reset everything and get things set up again, upgrade your damn OS when it's not being supported anymore!