This is one of the most requested features and will help different groups of users by providing more information about objects in the database.
Our proposal, along with examples and details about possibilities and restrictions, is published at:
https://labs.ripe.net/Members/kranjbar/proposal-to-display-history-of-objects-in-ripe-databaseIf accepted, we can enable this feature in a Beta state quite quickly.
Please kindly provide us with your feedback.
Kind regards,
Kaveh Ranjbar,
RIPE NCC Database Group Manager