Divorce impact on estimated taxes (going from joint to single)

Last tax year wife and I decided to divorce.  We sold numerous equities and realized many capital gains that drove our 2019 joint return amount due very high and subsequently the 2020 estimated taxes very high.

 

The divorce was finalized in February 2020 so we will be filing single. Since divorce is considered a life event, am I still required to pay estimated taxes at all?

 

If so, how do I handle submitting estimated taxes for 2020?