Add support for 3rd-party plugins; see Developers.
Add-on for Contact Form 7 (experimental).
Add-on for Gravity Forms (experimental).
Change logging for known-user with incorrect password; previously logged as unknown user and matched by hard filters (due to limitations in older versions of WordPress), now logged as known user and matched by soft.
Bugfix for email-as-username - now logged correctly and matched by soft, not hard, filters.
Bugfix for regression in code to prevent Free/Premium conflict.