The 8th ACM SIGPLAN International Conference on Software Language Engineering was held in Pittsburg during 25-27 October 2015.
There was a keynote from Stéphane Ducasse entitled: "What's the value of an end user? Platforms and Research: The case of Pharo and Moose".
It summarizes a little bit what has been achieved so far with Pharo, although it does not include all the community efforts. Here are the 171 slides