Google Photos to help users save space

Google Photos is rolling out a series of changes, including one that will help users free up space.
Announced on Google+, the first two changes are rolling out on Android starting on Tuesday and include a "Free Up Space" button on the Settings screen that will prompt the user to bulk-delete copies of photos already backed up from their device.

A second update is a fix that will allow users on some SD-card enabled devices to delete photos stored on an SD card.
Thirdly, on Wednesday a new feature will begin rolling out on the web that will make it possible to downgrade previously uploaded photos from "Original quality" to "High quality" by visiting photos.google.com/settings from a computer and clicking "Recover Storage."