Hi Eldee,
the versions of AmiStore and Alinea Computer have a built-in updater which checks at startup (Internet access required) if there is a new version on the Amiboing server and if there is, you will be informed the next start of Spencer.
If you have problems with this (no internet access with the amiga or similar) you can write us a mail ( mail@entwickler-x.de ) and we will generate an itch.io key with which you can download the current version on another computer and transfer it via usb to your amiga.
best regards,
Frank