The version 0.54 upgrade fixes issues with Tamron lenses. Also adds an option in Metabones App to enable the use of Digital Zoom in Advanced mode.
This Smart Adapter has the electronic aperture, EXIF, image stabilization and autofocus features. True electronic integration of aperture diaphragm lets camera automatically choose aperture in P or S exposure modes.
More information about the Metabones firmware update version 0.54 which the stability also improved.