Modern operating systems do a pretty good job of keeping themselves up to date nowadays. Many applications will also update themselves or notify you that you when it's necessary.
There's plenty of other popular software and hardware that still needs this done manually. Or maybe the auto-update feature was particularly annoying and you turned it off.
If you think there's a patch or vulnerability you should let the GWJ community know about, this is the place for it. Deep-dive discussions about something major like Spectre/Meltdown should go into its own thread, but new patch releases for it would still be appropriate here.
Open to all OSes and platforms (phones, wireless routers, etc.) that you think might impact your fellow forum-goers.