Hi! ForwardDiff.jl <https://github.com/JuliaDiff/ForwardDiff.jl>, a Julia package for performing automatic differentiation, has just been updated and is now much less buggy, much more performant, and much more comprehensively tested.
An additional goal of the update was to provide a more friendly API, so hopefully the package is now easier to use for newcomers (documentation can be found in the master branch's README). *To use the updated version of the package, check out it's most recent commit on the master branch*. The update is not yet tagged for release, as we want to give people a chance to work with the new API some before tagging a new version. Feel free to provide feedback in the form of an issue or pull request to the repository! Note that this update only supports Julia v0.4. Best, Jarrett