PHP 7 will be released later this year, and it is all about performance while maintaining the robust process-based architecture of previous versions.
It features a re-written AST-based engine which uses less memory and runs most existing PHP apps 2-3x(!) faster than PHP 5.×.
I will cover the new features, show some pretty graphs, and walk through potential BC breaks that you might hit in migrating your code to PHP 7.
Rasmus Lerdorf is known for having gotten the PHP project off the ground in 1995 and has contributed to a number of other open source projects over the years. He was an infrastructure architect at Yahoo! for seven years and is now at Etsy. He was born in Greenland, grew up in Denmark and Canada, and has a systems design engineering degree from the University of Waterloo. Twitter @rasmus