Virta API versions are supported according to below list. In general, for most APIs the support period is about two years. After the support ends the customers are required to update the APIs to latest versions provided by Virta.

API-version Support started Support will end
Admin v 4.0 1.3.2018 30.6.2020 (preliminary)
Public v 4.0 1.3.2018 30.6.2020 (preliminary)
Admin v 4.1 30.6.2019 (preliminary) 30.6.2021 (preliminary)
Public v 4.1 30.6.2019 (preliminary) 30.6.2021 (preliminary)