What kind of changes were introduced by MCC in the second half of 18th century?

(i) It became common to pitch the ball through the air, rather than roll it along the ground.
(ii) This gave the bowlers the options of length, deception through the air and increased pace.
(iii) It also opened new possibilities for spin and swing.
(iv) In response, batsmen had to master timing and shot selection. One immediate result was the replacement of carved bat with the straight one.
(v) The weight of the ball was limited between 5¹/ ² to 5³/⁴ ounces, and the width of the bat to four inches.
(vi) In 1774 the first leg-before law was published.
(vii) A third stump was also introduced.
(viii) By 1780, three days had become the length of a major match and the first six-seam cricket ball was also introduced.