Hi @t.dumm & @rokmeglic – how did you install the LTI provider plugin on your respective Pressbooks networks? I’m looking at both a local installation and a sandbox network we have set up for testing (plugin installed using the composer require pressbooks/pressbooks-lti-provider method described in the readme: https://github.com/pressbooks/pressbooks-lti-provider#installation). In both cases, I see version 1.3.4 but no longer see a 1.4.0-dev update option presented to me.
I believe that version number comes from this file: https://github.com/pressbooks/pressbooks-lti-provider/blob/5fea8646f4cb5fc87c72fc7a0c82e40f30780ba2/pressbooks-lti-provider.php#L8 and that the upgrade notices you were seeing, Thomas, were the result of our mistakenly releasing versions 1.3.2 and 1.3.3 with an incorrect value there. The version issue should be fixed – we recommend users update to 1.3.4 if they’re able.