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. A `feature freeze', for example, locks out modifications intended to introduce new 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.