Freeze: V. To Lock An Evolving Software Distribution Or Document Against Changes So It Can Be Released With Some Hope Of Stability.

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:freeze: v. To lock an evolving software distribution or document
against changes so it can be released with some hope of stability.
Carries the strong implication that the item in question will
`unfreeze' at some future date. "OK, fix that bug and we'll
freeze for release."

There are more specific constructions on this term. A `feature
freeze', for example, locks out modifications intended to introduce
new features but still allows bugfixes and completion of existing
features; a `code freeze' connotes no more changes at all. At
Sun Microsystems and elsewhere, one may also hear references to
`code slush' --- that is, an almost-but-not-quite frozen state.
-- The AI Hackers Dictionary

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