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> "The Voyager flight team dug up decades-old data and examined the software that was coded in an outdated assembler language, to make sure we could safely test the thrusters," said Jones, chief engineer at JPL.

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I'm curious as to what they mean by 'outdated.' Is the actual language outdated or simply the architecture? I would assume the latter, but it's tough to tell. I just can't figure out how assembly could become outdated.

Each processor has its own instruction set and thus assembly. Further, there are various assembly syntax dialects that can fall in and out of use. For example, the AT&T syntax and Intel syntax used for x86: https://en.m.wikipedia.org/wiki/X86_assembly_language#Syntax

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