Simplify the following text for a Grade 6 native English-speaking person.
Original: A version of Adobe Photoshop CS5 Extended was used for a Prerelease Beta ( known as `` White Rabbit '' ) . A large group of selected Photoshop users were invited to beta test in mid-February 2010 .
Simplified: The current version is Photoshop CS5 , which was released in April 2010 .