This is a bugfix release. You do not need to update your filters from 4.3.0.

• Add cron event to update trusted Cloudflare IP ranges weekly. Premium only
• Add cron event to update trusted Jetpack IP ranges weekly. Premium only
• Add cron event to update MaxMind database weekly. Premium only
• Workaround for missing syslog constants in Windows h/t @dmarkowicz.
• Clarify upgrade message on Last 5 Messages widget. [Free only]
• Merge About and Status tabs. Premium only
• Update Freemius library.