What is the new rule for double hit in golf?

As of my knowledge cutoff date of September 2021, the rule for a double hit in golf had been updated in the 2019 edition of the Rules of Golf. Under the current rules, a player is only penalized for a double hit if it was an intentional stroke. If a player accidentally hits the ball twice during a stroke, there is no penalty, provided that the double hit was not a deliberate attempt to hit the ball more than once. However, if a player deliberately hits the ball twice during a single stroke, the penalty is one stroke and the ball must be played as it lies.