iThemes Security Pro 8.5.3

Enhancement: Add confirmation button to Passwordless Login or One-Click Two-Factor when on a different device than you started with. When Trusted Devices is active, include information about the device the login will be processed on.
Bug Fix: Fix Passwordless Login release notice not being dismissed due to a REST API route that was more narrowly defined than necessary.

Bug Fix: PHP Warning while logging interstitial updates.

Breaking Change: iThemes Security requires PHP 5.4 or later.
New Feature: Make WordPress Security Easy With Passwordless Logins
Enhancement: Make Magic Links work in a wider variety of situations.
Enhancement: New Lockout Template screen.
Bug Fix: WordPress 5.3 Compatibility
Bug Fix: Brute Force module reporting invalid logins using an email address incorrectly.
Developer Note: There were significant changes to the internals of the iThemes Security Lockout API in this release. If you are using the ITSEC_Lockout class directly, all the API functions will continue to work, but will emit deprecation notices. Please update your integrations.