26.7.5-pixel

• Two app icons to choose from in the interface settings (gradient or striped); all icons are vector now
• Post dates always include the year
• Update sources reworked: the client updates from its own repository; extension update sources are configurable and can be combined
• Fixed the changelog viewer: wrong source repository and wrong language selection for locales like en-PL
• Removed the obsolete "Wi-Fi or 3G+" network mode
• Removed long-deprecated extension API methods (extensions from before 2020 may stop working)