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Greek translations are no longer available in the UI, but e-mails will still be displayed in Greek if user selects Greek for e-mail.
Safari uses significant amount of memory for high-definition monitors
Safari may show a warning message - "This website is using significant memory. Closing it may improve the responsiveness of your Mac." when you continuously open heavy-contents pages in Smart Review with a high-definition monitor. You may need to (repeatedly) close and re-launch Safari.