I received an updated via the Kubuntu backports PPA. I have to IMAP resources configured in Kontact which the Help menus now shows as version 4.14rc. One, connecting to a DoveCot server, work just as well as before. The other, connecting to Courier, seems to work except that no messages load when opening a folder. The folder list is correct, the resource in AkonadiConsole, appears to be running normally but I cannot access my messages. Using another client, K-9 on my phone of Thunderbird on the very same machine, works fine. I tried turning on logging and restarting Akonadi with akonadictl but the generated logs don't show any errors.
*** This bug has been marked as a duplicate of bug 338186 ***