UPDATED 8/14/2018:
As we previously announced in MC138148, we will be providing an option to opt out of the versioning setting update. You can start opting out today using SharePoint Online Managem...
Updated Aug 22, 2018
Version 8.0
Blog Post
Ah that was it, thanks!
Although I had installed the latest version, it hadn't overwritten the old version, so was obviously using that.
Now I've got another issue! It accepted the line "Set-SPOTenant -EnableMinimumVersionRequirement $False" but now when I run "Get-SPOTenant" I see the following entry:
EnableMinimumVersionRequirement : True
What is going on? I have tried setting it to false at least 5 times, but it's still stuck on True!
UPDATE:
Ok I thought you might like to know that I tried typing "Set-SPOTenant -EnableMinimumVersionRequirement $True"
Which initially set it to false!
Now some 2 hours later, I have just checked again and it has reset itself to True again!
It doesn't matter if I type $True or $False at the end of the script, it isn't changing to False now at all!!
MICROSOFT PLEASE HELP - WE NEED THIS DISABLED!!