Field History Tracking for Activities (Tasks/Events)
Field History Tracking is now available on Tasks & Events. You can track up to six fields so that your team can see what’s changed in the Related tab for events and tasks. The Activity Record History component is automatically added to default event and task Lightning pages.
Set Field History Tracking for Task and/or Event in Object Manager for the field you want to track.
Product Area: Platform – General Setup
https://www.asagarwal.com/salesforcespring23-field-history-tracking-for-activities-tasks-events/
