Last year, the rules to indoor hockey was shaken up when the number of players on the pitch at any one time was reduced from 6 to 5 in order to make the game more fast, furious and exciting.
This year (being implemented on January 1st, 2015), the FIH have made changes to the amount of times the goalkeeper can be substituted as well as the penalty issued for breaking early on a penalty corner.
With regards to the goalkeeper substitution, which used to be an unlimited amount of time, it is now narrowed down to only a maximum of 2 substitutions in any game.
In addition, the breaking early during a penalty corner, where a defender breaks past the back line or the attacker enters the circle too early is sent beyond the centre line, is now being implemented as a full rule after its success in national tournaments.
Also, for the first time in its history, FIH have ensured a cap is set on the maximum stick length, where no stick is allowed to exceed 105cm.
Although the rules are set for 1st of January, 2015, England Hockey will be applying them for the 2014/15 indoor hockey season.
For further information, take a look at the FIH website.