There are no breaking changes in this release. However, if you use the Exchange connector with basic authentication, you may want to plan the upgrade process towards OAuth2 and/or multi factor authentication on Azure.
2020.2.0 Upgrade steps
Update the Exchange connector
Microsoft announced the end-of-life of basic authentication for Exchange Web Services, on which the Dime.Scheduler Exchange Connector relies. There's still time to prepare for this change (October 13, 2020).
Simply install the latest version of the connector.