Thi is old news now, but we have recently released a major upgrade of our React codebase: https://status.datocms.com/incidents/2019-05-23-big/
It’s not an easy choice to make, but we felt like it was a good time as we want to develop more features we wanted to start a new batch of development with the latest and greatest to avoid major refactorings six months down the road.
This implied bringing up-to-date our internal dependencies and upgrading to the latest version of everything.
As you can imagine we tested the release as much as possible, but you might encounter some minor glitches here and there. Please let us know as we are always looking to improve and make DatoCMS more reliable.