Release v4.3.0.9

[Comments]

2020/12/31: Free, Premium, v4.3, WPf2b

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

The maximum slug length for registering custom plugin messages has been reduced to 200 characters.

  • Fix incorrect constant for disabling last messages (h/t @kermina).
  • Fix false positive with blocking user enumeration when a Contributor tries to list posts by another user.
  • Fix index issue with ancient versions of MySQL. Premium only
  • Fix harmless warning with a defined but empty `WP_FAIL2BAN_PROXIES` (h/t @stevegrunwell).
  • Backport new Block event class.
  • Update Freemius library.