While our Jackhammer performed very well in our projects, we are relieving it from the active duty. For now.
This actually does sound much more sad than it really is. The simple reality is that it won't be compatible with future versions of RapidMiner in it's current form and we don't want to promise something to our customers that we cannot stay up to. Therefore we will take some time to spit polish everything that is in there and will remain working and then he will be back, hammering away your data science problems. In the meantime we discovered so many useful features for large scale data science projects that we are going to implement, you should watch his return anyway.