As you might already know, PublishDrive allows you to make changes to your book even if it is already published. We simply send the updated version of your book to the stores, who will make it available as soon as possible.
You might wonder if those who already bought the book will get the updated version.
The good news is that all major retailers and subscription services will notify your buyers about the new version available.
For example, Amazon will send an email to the customers and they will be able to download the update to their device easily through that.
The same also applies to any store that has their own app in which buyers can read the book after purchase.