v4_2 is a misuse of Cargo features.

[Lymia]

If two crates depend on wyrand, and one sets v4_2 and the other doesn't, the semantics of Cargo features will cause both to use the v4.2 hash codes. This could be very bad for crates that depend on consistent hashing and were built for the v4 hashes. It'd probably be better to either drop support for v4 or make it two separate modules.

[Bluefinger]

The v4.2/v4 versions affect not just the hasher, but the wyrand module as well. However, I was intending on moving to v4.2 on a major version to deprecate v4, so what I might do is just accelerate with that plan given v4.2 is meant to have better quality entropy output than v4 anyway.

[Bluefinger]

@Lymia Feel free to take a look at #13 , which should resolve the issues with the resolver by splitting the two implementations into separate modules (also some nice things to ensure one can't mistakenly use parts of one with the other).