Server Updates include both 32-bit and 64-bit versions of the PhonePad Server and its modules. When you install a Server Update, the installer detects which version of Windows you have and installs the appropriate version of PhonePad Server.
Unfortunately there was an issue with the build process for this release. The 32-bit version of PhonePad Server was 5.53.2 but the 64-bit included was an earlier version – 5.53.1.
This has now been fixed and the 5.53.2 Server Update has been re-released.
We apologize for any inconvenience.