Hello Lexus,
When you submit an updated version of your Kindle content to KDP it doesn't take your book offline. The old version remains available for purchase until the updated version has been published. Unfortunately, the new version won't appear in the Kindles of readers who've already purchased the older version. If they would like the updated version I believe they would need to contact Amazon directly to request this.
Cheers,
Andrew
When you submit an updated version of your Kindle content to KDP it doesn't take your book offline. The old version remains available for purchase until the updated version has been published. Unfortunately, the new version won't appear in the Kindles of readers who've already purchased the older version. If they would like the updated version I believe they would need to contact Amazon directly to request this.
Cheers,
Andrew