This is yet another maintenance release before the next big update, hopefully fixing some mysterious crashes some users are experiencing.
There is just one minor enhancement with Zoom Toggle, it is now magnifying the image at 100% under the mouse pointer (if the mouse pointer is within the displayed image, otherwise, it will magnify the center portion just as previous versions).
ExifTool is updated to the latest release, version 11.29.
This is likely to be the last release supporting macOS 10.9, 10.10 and 10.11. Next major release will only support 10.12 (Sierra) and up.