翻訳と辞書
Words near each other
・ fixed-point
・ fixed-radio access
・ fixed-width
・ fixme
・ fixpoint
・ fj
・ fjolnir
・ fk
・ fl
・ flag
flag day
・ flair
・ flaky
・ flamage
・ flame
・ flame bait
・ flame off
・ flame on
・ flame war
・ flamer


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flag day : FOLDOC
flag day
A software change that is neither forward- nor backward-compatible, and which is costly to make and costly to reverse. E.g. "Can we install that without causing a flag day for all users?"
This term has nothing to do with the use of the word flag to mean a variable that has two values. It came into use when a massive change was made to the Multics time-sharing system to convert from the old ASCII code to the new one; this was scheduled for Flag Day (a US holiday), June 14, 1966.
See also backward combatability, lock-in.
[Jargon File]
(1998-01-15)



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