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.

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