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Should a programmer use in or at as a preposition when referring to the version-control revision number?

Example: Which is correct, fixed in revision 12345 or fixed at revision 12345?

The Googlefight result is almost equal.

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Do not use GoogleFight for prepositions, it's not meant for that. Semantics! Both prepositions are correct and have subtly different meanings. In general, use in. – Kris May 9 '14 at 4:40
up vote 5 down vote accepted

Fixed in revision n says that the change occurred in that revision.

That bug was fixed in revision 23.

Fixed at revision n doesn't say when it was fixed, just that we know that revision n contains the fix. It could have been fixed earlier. Some people would use the two interchangeably.

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