In Spring 2017, Harika Nakula, Sarika Padmashali, Pragya Rana were hard at work at adding useful features to Yioop: posts can now be encrypted in our database, differential privacy had been added to group and query statistics. Thread and group suggestion features using collaborative filtering were added and improvements to our chatbot API were created. These will all be include in Yioop 5.0 which will probably come out around September. This summer I will be working hard to try to polish and tune these features. I also am coding a number of small single-file servers for various useful things. I call the project [[https://github.com/cpollett/atto|seekquarry/atto]]. Currently, I am hosting it at github, but I'll probably also keep a copy at seekquarry.com. So far I've coded a Node.js style PHP web server and gopher server. The next server I am going to work on is a combined smtp/imap server. Some of the code for these will be worked into various group features of my Yioop search engine. I have been following SSD prices, my plan is to start a new large scale crawl when 4tb ssd prices get down to the 500-700 dollar range. I have some ideas on how to improve organic search result which I'll also try testing. Hope other people have a super happy summer, Chris