The app even received a named update called Adobe Photoshop CS5.1 that introduced a subscription model pricing for the first time in the history of this program. The most notable addition introduced in Adobe Photoshop CS5 were tools such as Content-aware Fill that uses advanced image scanning and algorithms to fill out parts of the images with appropriate content, new Warp and Brush tools, drastically expanded support for RAW file manipulation, new Blend moves (Subtract and Divide) Automatic Lens Correction and novice-ready HDR toning, and more. Adobe Photoshop CS5 Update is a raster graphics and photo editor that was released to the public around the year and a half after CS4, the first Photoshop editor that natively supported 64-bit processing and large project sizes used by professional users from all around the world.