Introduction of t20 matches.
invention of vulcanised rubber led to invention of protective equipments like glooves , knee and elbow pads ,etc
first the length was not specified but now the length of pitch is specified to22yards but shape of ground is not fixed.
first ballers used to perform underarm bowling but later bowling through air became legal.
first the shape of bat was like hockey stick but now it changed into straight.
weight of ball is now specified as 5 1/2 to 5 3/4 ounces.