23.12.2013, 04:36, "Mikeal Rogers" <[email protected]>:

 * allow aggressive caching, reducing the cost of the npm registry and making npm use faster for most use cases
 
this isn't an issue. the cache control can, and must, be proactively invalidated on _changes from the database for document urls anyway, it's trivial to do the same for tarball changes. it can literally cache forever so long as it responds to pro-active invlaidation.
 
HTTP caches know nothing about _changes feed.
 
 

 * change behaviour only for version-locked dependencies when that (and only that) specific patch is unpublished
 
i'm not disagreeing with you but when you say things like "change in behavior" you're sort of sugar coating the fact that packages will fail to install at a greater rate than they do now. this "change in behavior" is not trivial, there is no notice sent to someone when their package can no longer resolve a dependency, it will usually require someone to see a failed install, report an issue, and the maintainer to intervene. the only way to avoid this is to never version lock your dependencies which we know people don't do and that there are tens of thousands of packages in npm today with some number of version locked deps.
 
Patching npm to treat "1.2.3" like "~1.2.3" as a fallback would solve this task. I know it's ugly, but it's no less ugly than unpublishing-republishing practice, because you essentially doing the same thing.
 
 
// alex

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