Also upgraded to the RC1.
I had to manually refresh the SSL certificates as I couldn't send any
email.
ie. I needed to download SSL Certs again. (workaround, open Account
settings, Sending Mail, check data, press NEXT, get error, accept and
download SSL Cert. again)
I got an error when sending email
"Unrecognized Certificate
The server presented an invalid SSL certificate...."
I think this happened before with an update to the present stable release.
I thought doing an upgrade would take what was already there and not
require refreshing the SSL certificates.
Not sure if this is a bug or expected behaviour. Couldn't find a place
on Github to post this error.
This happened on both Galaxy Note 10.1 running Android 4.1.2 & Google
Nexus running Android 4.3
B.