Here are the details about Hacktoberfest 2020 from DigitalOcean Newsletter.
If you are interested you can join Whatsapp group, where we have people who have participated last year and are willing to help you this year.
Update: Oct 19th 2020
Congratulations to Bala, Vasanth, and Rohit for successfully completing. Here is a short video of the meeting about their experiences.