Template: isync/upgrade_0.8 Type: boolean Default: false _Description: Abort isync upgrade You are upgrading from an older version of isync that stored the UID of each message in a way that is not compatable with the new version. You need to remove all the messages in local folders downloaded with the old version of isync. Otherwise isync will get confused and upload duplicate messages to the IMAP server. . A suggested upgrade procedure is to use the isync version 0.7 to synchronize any local changes in isync-managed mailboxes with your IMAP server (if there are any local changes to synchronise), and then remove the contents of the local mailboxes, before upgrading to version 0.8 or above. Then run isync again to pull down the mail again. You must do this manually; the Debian package will not do this for you. . If you want, the upgrade of isync can be aborted to let you deal with this issue. Or you can just suspend the upgrade or switch to a different virtual console to take care of it. Do not continue past this point before manually resolving this issue!