iThemes Security Pro 8.5.3

-Bug Fix: Prevent WP admin dashboard JavaScript from crashing when the File Change module is not loaded.
-Minor: Track raw memory used by the file change scanner as well.
-Minor: Page Load Scheduler: Unschedule single events before running them. This mirrors the behavior of the WP Cron scheduler.

-Enhancement: File Change Scan uses a new batching mechanism to prevent crashing on hosts but still generating only one report per-day.
-Minor: Updated list of File Change excluded file types to include more media extensions.
-Minor: File Scan "chunk" option is removed.
-Minor: Specifying a manual file scan list has been removed.
-Minor: Security Digest now includes all lockouts that have occurred since the last email.
-Bug Fix: Don't prompt for security check when visiting the settings page after running the security check WP CLI command.

-New Feature: Add WP CLI commands for running the Security Check Scan, managing Modules and enrolling in Network Brute Force.
-Bug Fix: When using the Cron scheduling system, malware scans that had failed and been scheduled to retry would fail to reschedule the original scan event upon success.
-Bug Fix: Added ability to show object data for classes that are not loaded to the Logs page.
-Bug Fix: Fixed logging system references to "fatal-error" that should be "fatal".
-Bug Fix: Prevent PHP warning when completing database backups that are not emailed to any recipients.
-Bug Fix: Prevent PHP warning about converting an array to a string when adding notification data.