Shaderific version 4.0 is now available. Shaderific is an educational app for iPad, iPhone and iPod touch that makes it possible to write, compile and test OpenGL ES 2.0 and OpenGL ES 3.0 shader programs directly on any iOS device. Version 4.0 adds support for iPad Pro taking full advantage of the bigger screen as well as support for Multitasking with Slide Over and Split View. To complement the existing anaglyph 3D rendering capabilities a new 3D mode has been added for left-right stereo image rendering. Furthermore, rendering on an external display connected via Lightning Digital AV Adapter is now supported in addition to the default screen mirroring.