On Fri, Jan 13, 2017 at 7:23 AM, Thomas Güttler <
> What is an application for you?
Another way to think about this, FWIW, is to distinguish between the "whole
system" (for which "Application" is often a useful shorthand), as opposed
to components (aka libraries).
It's important for components to be flexible, so they're typically very
flexible about versions of their dependencies.
For whole systems, OTOH, it's important that once a configuration is
tested, that the same configuration is used in production, so systems
typically pin all of their dependencies, ideally extending to their
environments (which is a reason why container technology is attractive).
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