• Introducing WebPros Cloud - a fully managed infrastructure platform purpose-built to simplify the deployment of WebPros products !  WebPros Cloud enables you to easily deliver WebPros solutions — without the complexity of managing the infrastructure.
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  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.
  • The BIND DNS server has already been deprecated and removed from Plesk for Windows.
    If a Plesk for Windows server is still using BIND, the upgrade to Plesk Obsidian 18.0.70 will be unavailable until the administrator switches the DNS server to Microsoft DNS. We strongly recommend transitioning to Microsoft DNS within the next 6 weeks, before the Plesk 18.0.70 release.

Unusable Control Panel after upgrade

I don't know if it's revelant but sw-cp-server/error.log screams:

PHP Warning: json_encode() [<a href='function.json-encode'>function.json-encode</a>]: Invalid UTF-8 sequence in argument; File: /opt/psa/admin/smb/application/library/Smb/Controller/Action/Admin.php, Line: 465

Exception: PHP Warning: json_encode() [<a href='function.json-encode'>function.json-encode</a>]: Invalid UTF-8 sequence in argument; File: /opt/psa/admin/smb/application/library/Smb/Controller/Action/Admin.php, Line: 465

file: /opt/psa/admin/smb/application/library/Smb/Exception/Syntax.php
line: 55
code: 0
trace: #0 [internal function]: Smb_Exception_Syntax::handleError(2, 'json_encode() [...', '/opt/psa/admin/...', 465, Array)
#1 /opt/psa/admin/smb/application/library/Smb/Controller/Action/Admin.php(465): json_encode(Array)
#2 /opt/psa/admin/smb/application/library/Smb/Controller/Action/Admin.php(383): Smb_Controller_Action_Admin->_addSearchBarParams()
#3 /opt/psa/admin/smb/application/library/Smb/Controller/Action/Admin.php(102): Smb_Controller_Action_Admin->_addShortcutsSegment()
#4 /opt/psa/admin/plib/Zend/Controller/Action.php(133): Smb_Controller_Action_Admin->init()
#5 /opt/psa/admin/plib/Zend/Controller/Dispatcher/Standard.php(268): Zend_Controller_Action->__construct(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http), Array)
#6 /opt/psa/admin/plib/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#7 /opt/psa/admin/smb/application/library/Smb/Application/Web.php(48): Zend_Controller_Front->dispatch(NULL)
#8 /opt/psa/admin/smb/application/public/index.php(15): Smb_Application_Web->run()
#9 {main}
 
OK, found the problem - Polish Translation. Switching back to en_US fixes everything. Please proofread and fix this issue, something as trivial as swithing a language can make the whole panel inoperable.
 
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