For this update you should update the +Gallery library files. For now download it from here since the creator hasn't updated main repository yet.
This update adds a new requirement: jquery_update. Note: Untill the following issues have been resolved and included into the stable release of jquery_update you need to install the dev version! If you don't some forms won't function properly.
This update splits Plus Gallery in several submodules:
Plus Gallery (Core): Functionality used by all the other submodules. E.g. use of the libraries module.
Plus Gallery Field: The field functionality known from the previous versions of this module.
Plus Gallery Formatter: The formatter used for the Plus Gallery field, also used in previous version of this module. The formatter has been extended for the image field (drupal core). So now you can use local images, uploaded with the image field.
With this update also comes a version check of the +Gallery files. You'll have to update to verison 0.9.1 or later.
This update requires an update of the database. In the table field_config the type plus_gallery is renamed to plus_gallery_field.
Important notes
Don't forget to enable the new modules!
You might have to save the formatter (display) of the Plus Gallery Fields again.
Update the database!
Update the +Gallery library files! (Might require flushing the cache!) Temporary note: Currently the official +Gallery library files don't support local images yet, so you have to download my version for now.