You can find the outlook version on various applications and OS as follows;
For Windows Users:
https://support.microsoft.com/en-us/office/what-version-of-outlook-do-i-have-b3a9568c-edb5-42b9-9825-d48d82b2257c#picktab=windows
For MAC Users:
https://support.microsoft.com/en-us/office/what-version-of-outlook-do-i-have-b3a9568c-edb5-42b9-9825-d48d82b2257c#picktab=mac
For Web Client find here
https://support.microsoft.com/en-us/office/what-version-of-outlook-do-i-have-b3a9568c-edb5-42b9-9825-d48d82b2257c#picktab=web
And if you have anyone using Mobile Users, please find the version information here;
https://support.microsoft.com/en-us/office/what-version-of-outlook-do-i-have-b3a9568c-edb5-42b9-9825-d48d82b2257c#picktab=mobile
Good luck and let us know if you absolutely need any help.
THOBSON Support Team
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