It has always been easy to update records in Salesforce using Jetstream, but now it is even easier for some of the most common use-cases. You can make bulk record updates directly from the Query Results page in Jetstream.
You could always do this by using the Update records in bulk feature, but if you wanted a complex query filter then this meant navigating to multiple pages and copy/pasting the WHERE clause.
Now, you can perform the same action right from the Query Results page based on your queried records!
Check out the documentation for additional details.