PicsPro version 5.3.0 was released today following a series of major changes in Google's Picasa Web API.
You can read more about these API changes on the Google Photos blog, as well as on the Picasa Web API Google group.
The new release has discontinued the Public Search feature, since it's no longer supported by Google.
Instead, we are offering a new feature called Recent, which displays your most recent uploads to Google Photos.