However, as part of this work, some changes we made to the

@pulumi/pulumi

package are of the sort that will not necessarily play well if prior versions of that same package are loaded into an app. For example, if you reference this new

0.17.x

version of

@pulumi/pulumi

it won't necessarily work properly if you have a library that ends up pulling in an

0.16.x

version. This is because hte 0.16.x version won't properly keep track of things like the component-dependencies. Nor will it properly allow you to lift those members. Because of the problems and confusion this could cause, we have updated

pulumi

to warn if you run an app that mixes/matches across these versions.