Something new- sorry.
The new release updated fine, and I was prompted to log back in. Having input my user name and password, the client abruptly quits, with the Mac alert box:
"Spiral Knights quit unexpectedly."
I tried reopening the client; restarting the client, changing the screen size (as noted in the new release that was supported); and changing other options that were available to see if it was just my current setting to no avail.