You'll notice
Useful2 Signal2
Dropped bridge connections now say what kind of failure happened rather than one generic message.
What's wrong with this entry?
Anonymous. No account, no email.
What
A dropped repl bridge connection now records an error kind alongside the error message, and close code 4090 distinguishes a session worker registration that has gone stale with no active worker holding it from a session the server does not have, instead of showing one generic message for both.
Evidence
the session worker registration went stale \u2014 no active worker holds it (code 4090)
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.