I recently updated my local server (WAMP) and it installed MySQL 5.7.14. That has some additional restrictions to the mysql_mode that were not in MySQL 5.6 and it meant that many of my queries failed. I can use SET SESSION sql_mode in my connection script to fix this.
All of the TCH servers that I have sites on are still using version 5.6 so they all run fine.
Are there any plans or schedules for upgrading the MySQL versions to 5.7? It would be nice to know in advance, if possible.