On Tue, Sep 2, 2014 at 10:27 AM, Jeremy <voldermort@hotmail.com> wrote:

I would like to point my cabal file to the latest Stackage snapshot. I seem
to recall that there is a link which will automatically resolve to this, but
I can no longer find it.

Does this link still exist? Is there a good reason for not doing so? I
understand that this will introduce a little instability, but I'm OK dealing
with that in return for not getting stuck on the same package versions forever.

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The preparing your system for Stackage page[1] has those auto-updated links available (e.g., GHC 7.8 exclusive is [2]). You already identified the downside with this: you may magically be upgraded to a new version of a package. If you really want to do this, you can, but my recommendation is to manually decide to upgrade your Stackage snapshot consciously instead of letter an arbitrary Jenkins build server make the decision for you.

Michael

[1] https://github.com/fpco/stackage/wiki/Preparing-your-system-to-use-Stackage
[2] http://www.stackage.org/alias/fpcomplete/unstable-ghc78-exclusive