Under the new guidelines, race director Charlie Whiting will continue to report incidents to the stewards just like before. However, from there upon stewards will have to make the decision to initiate an investigation or not.
You are free to overtake driver if you are fast enough!
Article 38.2 of the F1 regulations is now revised, and it states that it shall be at the discretion of the stewards to decide if any driver involved in an incident should be penalized.
Stewards primarily include the Race Director and the Clerk of the particular Course.
Further, the article adds that Unless it is clear to the stewards that a driver was entirely or predominantly to blame for an incident, no penalty will be imposed.
The decision was taken so as to encourage the drivers to go for more overtaking maneuvers. As the drivers are usually concerned that they may be penalized for a minor contact.
Some other penalty improvements, drivers who are unable to serve an imposed time, stop-and-go or drive-through penalty during a race due to retirement will be taxed with a grid penalty in the next tournament.