How to upgrade your Dynamics 365 instance to Release 2020 Wave 1 (April 2020 Release)?

As you might have heard already, Dynamics 365 Release 2020 Wave 1 (April 2020) is officially available for early preview access. It means that before its available for General release, to explore the new features, we can make use of it in trial / test instances. How to upgrade your instance to Release 2020 Wave…