Backward compatibility is the root of quite a bit more evil than premature optim... | Hacker News

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		api on Feb 11, 2015 \| parent \| context \| favorite \| on: Bypassing Windows 10's Protections Using a Single ... Backward compatibility is the root of quite a bit more evil than premature optimization.

InclinedPlane on Feb 11, 2015 | [–]

Modern CPUs still implement the A20 gate functionality, for example.

barrkel on Feb 11, 2015 | [–]

Backward compatibility, OTOH, is key to a large fraction of upgrade revenue.

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