Hi @jplew
The repeater / flexible content are yet to recieve an update including a removable update script.
However, the gallery field and options page have one.
In these add-ons you can just remove the acf-gallery-update.php
file and all will be well.
The repeater / gallery add-ons include some code in the plugin file which includes the old updater class. This code needs to be removed along with the old acf-remote-update.php
file.
Hope that helps
Thanks
E