A small but vocal group of people have been asking to get rid of Prototype ever since the first version of Spree was released. We told these critics that we would be happy to make Spree 100% jQuery if only one of them would stop complaining and actually write some code. Fortunately for all of you Prototype haters, that day has arrived. Thanks to Roman Smirnov, you can now enjoy pure 100% jQuery in the latest edge version of Spree.
This work was actually completed several weeks ago but we delayed moving it into core until after the 0.9.0 release. Please report any bugs you find in our issue tracker. Roman has actually been contributing a lot of great patches lately and we have several more of them in the pipeline that we need to get around to. The Spree community is still going strong. Keep those awesome contributions coming!