The sprawling Linux ecosystem has a diverse array of supported hardware, but its age is catching up with some older components. In the latest move, Linux maintainers are set to remove support for Intel's 486 processor in kernel version 7.1, making it impossible to build kernels that will run on these ancient machines.

Supporting such old hardware isn’t cost-free; as Linux kernel contributor Ingo Molnar notes, maintaining compatibility with decades-old processors can divert development efforts away from more pressing issues.

In a 2022 comment, Linus Torvalds echoed this sentiment, suggesting that development time spent on 486-related problems was wasted. The removal of support for the 486 processor will also affect other compatible chips such as Cyrix 5×86 and Am5x86 from AMD.

This marks a significant shift in how software evolves over time, reflecting a balance between backward compatibility and modern development priorities. Will it be the start of similar changes for even older hardware?