The following issues have been resolved:
[-] (Linux) Administrators could not back up server settings if external webmail was registered in Plesk. (PPP-10629)
[-] (Linux) Users could not install Plesk using One-Click Installer. (PPP-10624)
[-] (Linux) Watchdog could not start Fail2Ban on Debian/Ubuntu operating systems. (PPP-10610)
[-] (Linux) Scheduled backup could fail with the “File exists” error. (PPP-10601)
[-] The OK and Cancel buttons were not shown when users tried to create a domain in Power User view while DNS service was switched off. (PPPM-1742)
[-] (Linux) Operations on domains with stopped BIND service could corrupt Plesk database on SuSE Linux 13.1. (PPP-10594)
[-] (Linux) On CentOS 5, customers could not send email messages via Roundcube webmail if outgoing mail control was switched on. (PPP-10593)
[-] Plesk database became inconsistent after users created a domain via API RPC by using protocol version 1.6.2.0 and earlier. (PPP-10582)
[-] (Linux) After upgrading Plesk, users could not log in to it. The following error occurred: “Internal error: Permission denied”. (PPP-10574)
[-] Administrators could not reconfigure the Manage Domain Names button in Tools & Settings > External Services. (PPPM-1734)
[-] (Linux) Files owned by Apache could not be backed up by the pleskbackup command-line tool. (PPP-10543)
[-] (Linux) Roundcube could not connect to the database on Plesk installations cloned with the option “-prepare-public-image”. (PPP-10539)
[-] (Linux) Plesk upgrade via old versionless templates (psa-kav8 depends: psa-kav8-multiarch) failed on Ubuntu 12.04. (PPP-10516)
[-] Search and sorting of applications by category did not work in the applications catalog. (PPPM-1728)
[-] (Linux) On Ubuntu 14.04 with enabled Watchdog, MySQL service failed to start after a server was restarted. (PPP-10488)
[-] (Linux) On 32-bit Ubuntu 14.04, administrators could not use Plesk health monitor. The following error occurred: “This RRD was created on another architecture”. (PPP-10486)
[-] (Linux) Even if greylisting was switched off for a domain, it remained switched on for a domain alias. (PPP-10465, PPPM-759)
[-] (Linux) After migrating from Plesk 11.0 to Plesk 12, mailing list administrators received a notification with a wrong password. (PPP-10375, PPPM-1691)
[-] Resellers could not set up web hosting for domains if they were not granted the “Common PHP settings management” permission. (PPPM-794)
[-] (Windows) Scheduled backup could fail with the “File exists” error. (PPP-10601)
[-] (Windows) Microsoft SQL Server database tables with varchar/nvarchar/varbinary(MAX) columns could not be migrated from Plesk 8.6. (PPPM-1744)
[-] (Windows) The reconfigurator utility crashed while repairing the security settings of virtual hosts. (PPP-10592)
[-] (Windows) Users could not create sites with Presence Builder if only PHP 5.5 was installed on the server. (PPP-10489)
[-] (Windows) License keys on Plesk for Windows had the Fail2Ban component switched on, although ModSecurity and Fail2Ban are not available on Plesk for Windows installations. (PPPM-1721)