IDPA sent out email with several imporatnat changes to the rule.
First is dropping 'Flat foot reload'. When the new rule came out in 2013, the only time competitor can reload was when both of his feet were flat on the ground. This created quite a bit of discontent since it is possible and tactically useful to reload while on the move. Starting with the next rule book, this will change.
Also, IDPA will introduce a new division that will allow optics/RDS(Red Dot Sights). There has been some interest in using RDS for the game and this seems to be a step towards it.
Third, 2015 World Championship is moving from Puerto Rico to Tulsa.
From: IDPA