The Dev channel has been updated to 90.0.4400.8 for Windows,Linux and 90.0.4400.10 for Mac.
A partial list of changes is available in the log. Interested in switching release channels? Find out how. If you find a new issue, please let us know by filing a bug. The community help forum is also a great place to reach out for help or learn about common issues.
Srinivas Sista