Click Contacts > Help > About MYOB Contacts.
For AE Tax Series 8, the version number should be 8.31.02.
For AE Tax Series 6, the version number should be 6.47.02.
Both AE Tax Series 8 and Series 6 version numbers are followed by a section in brackets listing the service packs installed. This section will include AE Tax.
Open and close each of your installed modules to ensure each can be accessed.
Open a 2019 tax return and click Help > About. The version should read 2019.0.
Open a 2018 tax return and click Help > About. The version should read 2018.3.
Close Contacts.