UPGRADING.md

From v2 to v3

• if you are using a custom Activity model, you should let it implement the new Spatie\Activitylog\Contracts\Activity interface
• the preferred way to get changes on an Activity model is through the changes property instead of the changes() function. Change all usages from $activity->changes() to $activity->changes
• the activity relation of the CausesActivity trait has been renamed to actions. Rename all uses from $user->activity to $user->actions
• the activity relation of the LogsActivity trait has been renamed to activities. Rename all uses from $yourModel->activity to $yourModel->activities.
• the deprecated loggedActivity relation has been removed. Use activities instead.
• the HasActivity trait has been removed. Use both CausesActivity and LogsActivity traits instead.