The forum software is regularly upgraded and after the recent update we are at version 2.0.19.
However 2.0.xx has been replaced with a new version and the developers advise:
SMF 2.1 is now the recommended version for use on live production forums. We encourage everyone to start planning for an upgrade to SMF 2.1.
SMF 2.0 remains supported and will continue to receive security updates for the foreseeable future, but this release officially marks the end of further 2.0 development. We will release a separate announcement for any future changes to SMF 2.0's status.
Sometime next week, early morning (after the clocks change and while I am still on old-time body clock) I will check the details, work through the instructions and install the latest version. 🤞🤞