Skip to main content
This topic applies to FRE for Windows .
Starting with Release 5 of ABBYY FineReader Engine, you will be able to upgrade to newer versions without uninstalling the product first. Simply run the installer in the same way. The following conditions apply:
  • For Developer installation, the version already installed is no older than Release 5.
  • For Runtime installation, the version already installed is no older than Release 6.
  • The build number of the version you are going to install is newer than the one already installed in the first three numbers:
    • 12.5.12.0 -> 12.5.15.0 — OK
    • 12.5.12.0 -> 12.6.1.0 — OK
    • 12.5.12.0 -> 13.1.1.0 — OK
    • 12.5.12.0 -> 12.5.12.1 — NOT OK, only the fourth number is newer
    • 12.5.12.0 -> 12.5.11.0 — NOT OK, already installed version is newer
If you are upgrading from version older than Release 5 (Release 6 for Runtime), or the build number conditions aren’t fulfilled, you will have to uninstall ABBYY FineReader Engine and then install the new version, as before.