WPf2b v4.3 now fully supports multisite networks in both the Free and Premium versions.

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• Web Application Firewall. Premium only
• Add PTR record lookup to event report. Premium only
• Improve report performance. Premium only
• Site Health: Check `fail2ban` is running.
• Site Health: Obsolete Filters - Detect DigitalOcean Droplet and link to documentation.
• Fix harmless warning h/t @Yavor.
• Fix warning caused by bug in Google Sitekit h/t @DaWolfey.
• Update Freemius library.

• Tweak Site Health notifications.
• Update Freemius library.

• IPv6 support.
• Akismet support. Premium only
• Auto-update Cloudflare IPs. Premium only
• Event hooks. Premium only
• Performance improvements:
  • Improve reports. Premium only
  • Cache IP lists. Premium only
  • Cache Plugin API message registration. Premium only
• Check installed filters against previous versions (Site Health).
• Moved "Authentication attempt for unknown user" to wordpress-soft.conf.
• Moved "extra" Comment messages to wordpress-soft.conf.
• Show date/time in local timezone h/t @geniusmedia. Premium only
• Deprecate WP_FAIL2BAN_LOG_COMMENTS_EXTRA and WP_FAIL2BAN_COMMENT_EXTRA_LOG; use WP_FAIL2BAN_LOG_COMMENT_ATTEMPTS and WP_FAIL2BAN_COMMENT_ATTEMPT_LOG instead.
• Update Freemius library.

• Preparation for v5: prevent auto-updating across major release.
• Update Freemius library.

• Backport fix for mu-plugins activation.
• Update Freemius library.