With our Q3 2014
release the Assembly Minifier tool became obsolete due to its many known limitations. There are other approaches for minimizing your XAP which are much better and using such a tool is inconvenient. Please refer to this blog post
to understand why we decided to discontinue the Minifier and learn more about the more convenient approaches that we suggest you implement instead.
In short we will no longer maintain, fix or improve the Minfier tool but it will still exist in its current location
and users will still be able to use it as it is.