Release 1.5.5 (57)

New Features:

• Security fix: prevent of loading/execute unauthorized code (thanks to @ryangravette-bsd)
  • Prevent the execution of injected scripts or custom events.
  • Image files are identified by their magic code, not by their extension.
  • Validation for opening external links on the main App.
  • YAML header is now sanitized before rendering.
  • Fixed markdown fenced blocks.
• Highlight updated to release 4.2.1.
• Lua updated to release 5.5.1.
• Sparkle updated to release 2.10.0.
• SwiftSoup updated to release 2.13.9.
• Dropped pre macOS 12.0 legacy code.