Please check and download the latest version from here:
AOMEI Backupper:
https://www.ubackup.com/changelog.html
AOMEI Partition Assistant:
https://www.diskpart.com/changelog.html
If you are using a paid edition, please still use your license code to register.
Generally, when you install the new version, it will first uninstall the old one automatically. During uninstalling, you can retain the license information so that you don't need to register again on the new version.
Btw, for AOMEI Backupper, the new version still loads the backup settings created by the old one.