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Feature Request

Now that #1614 is fixed and released (yay!), I'd like to propose that for v2, there is a breaking change to make Poetry more opinionated and preserve the versions in the lockfile by default, only updating when explicitly asked to (such as with the update command or some kind of --update flag to lock). Doing so follows the patterns in analogous tools like Yarn and Cargo and adheres to the principle of least surprise.

See also the philosophically-related #2370.