To upgrade from ENA 18.0 or Entuity v19.0 to Entuity v20.0, you will need to install the latest patched version of ENA v18.0 or Entuity v19.0, which as of Entuity v20.0 GA is:
- ENA v18.0 P11.
- Entuity v19.0 P05.
ENA v18.0, Entuity v19.0 and Entuity v20.0 are all certified for use with the 64-bit English edition variants of:
- Red Hat Enterprise Linux ES version 7.
- Red Hat Enterprise Linux ES version 8.
- Oracle Linux 7.
- Oracle Linux 8.
- Windows Server 2016
- Windows Server 2019.
Because v18.0, v19.0 and v20.0 are all certified for use with the same operating systems, you can simply upgrade straight from v18.0 or v19.0 to v20.0 without upgrading their OS.
If you wish to upgrade your OS from Red Hat Enterprise Linux ES version 7 to 8 or Oracle Linux 7 to 8 you can do so before upgrading to Entuity v20.0.
If you wish to upgrade your OS from Windows Server 2016 to 2019, you can do so either before or after upgrading to Entuity v20.0.