a quick question about ZEO

[tmassman (Thomas Massmann #BlackLivesMatter)]

Any reason why you opened a new thread?

What does "ZEO" stand for?

Hey! Can anyone help me out on what ZEO means? Also is there any particular reason why we're not using the latest version of Plone, i.e 5.1 for the gatsby-source-plone project? The buildout seems to use Plone 5.0.8 instead.