NOISEInfrastructure Software·May 25, 2026, 10:20 AMSignal5Immediate

Linux To Drop ARCnet Support For Old ISA & PCMCIA Hardware

Source: Phoronix

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Linux To Drop ARCnet Support For Old ISA & PCMCIA Hardware

With Linux 7.1 ISDN, ham radio, and other old network code was removed in lightening the kernel source tree by around 138 thousand lines of code. Some additional Linux networking code cleaning is expected for Linux 7.2 with the ISA and PCMCIA hardware around ARCnet set to be removed...

Why this matters
Why now

The continuous evolution of the Linux kernel inherently involves periodic clean-up of deprecated or unused code, with older hardware support being a frequent target.

Why it’s important

This item is not important for a strategic reader as it pertains to routine software maintenance and impacts only legacy, non-strategic hardware.

What changes

This change primarily results in a smaller Linux kernel codebase and reduced maintenance overhead, with no impact on modern or future computing infrastructure.

Winners
  • · Linux kernel developers
Losers
  • · Users of ancient ISA/PCMCIA ARCnet hardware
Second-order effects
Direct

The Linux kernel source tree becomes slightly smaller and more efficient.

Second

No significant second-order effects are anticipated as the affected hardware is obsolete.

Third

This cleaning process enables developers to focus on more relevant, modern technologies without the burden of maintaining legacy code.

Editorial confidence: 90 / 100 · Structural impact: 0 / 100
Original report

This signal links to a primary source. Continuum Brief monitors and indexes it as part of the live intelligence stream — we do not republish source content.

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