Re: Upgrade to 2.4.1 - "ERROR!!! The code you are using is OLDER than the version that made these databases!"

We have checked the theme. The only plugins that could be "out of date" are:

POODLL

and the Open University Drag and Drop Image

For both of those we are using the latest version, the OU plugins support 2.3. Are plugins so strick that 2.3 plugins can't run in 2.4?

Thanks!