Which of the top programming languages are completely backward compatible? | Hacker News

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		Which of the top programming languages are completely backward compatible? (softwareengineering.stackexchange.com)
		1 point by nomilk on March 23, 2023 \| hide \| past \| favorite \| 1 comment

simonblack on March 24, 2023 [–]

I'm doubtful that there are any. Even within the one language we find backward compatibility problems between versions.

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