ImAlsoGreg/pipes-rt — pull request #1 by Gabriel439 (2014-02-02 21:04:56+00:00)
Title: Changed upper bound on `pipes` to `< 4.2`

`pipes-4.1.0` got a version bump because it removes the dependency on the `void` package, which is only a breaking change if you used the `Void` type explicitly instead of the type synonyms. For `pipes-rt` this is a backwards compatible change so this pull request just updates the upper bound.