[ceejayoz]

Maybe that means we don’t need version 5? Companies aren’t supposed to be immortal.

[ixsploit]

And if a critical security flaw is discovered in version 4, nobody is going to fix it, and you need to buy a new product from a different vendor.

[Nextgrid]

If it's so critical, then you will buy it. Market supply/demand and all that.

But there's many "security flaws" that are nowhere near critical or just don't apply to your use-case for the software.

[anonymousiam]

You've touched on the business model for both Microsoft and Apple. Once they decree that the OS is no longer supported, you're forced to upgrade. Microsoft has even begun to play Apple's game by also obsoleting the hardware.

[eMPee584]

.. after being pwned, and even then only maybe. Unless.. pushy ads for bugfixes?

[Nextgrid]

Still better than paying for SaaS, still getting pwned and getting free credit monitoring in compensation?

Not to mention local-first software has much less attack surface for pwnage. You can wrap insecure protocols with encrypted tunnels, you can share files from a legacy app with any secure file transfer app of your choice... or if all you need is local functionality you don't need to share at all which means no remote access possible.

[pjmlp]

Well, when that OS version update comes and the company is no longer around, it is time to move to something else, or keep the old OS version running as long as the hardware holds.