Using 1Password for Business, I read the items archived changes are purged after one year on the Support websute. https://support.1password.com/item-history/#restore-items
Traditionally, in 1Password local vaults, password changes are stored as a part of the item, meaning that they were kept indefinitely. Are old passwords recalled via "View Password History" purged after on year or are they kept as long as the item exists in 1Password and is actively stored on 1Password.com.
1Password Version: 7.4.2
Extension Version: Not Provided
OS Version: 10.14.2
Sync Type: 1Password.com