• Animatable raster layers – Animated raster images with frames, and use the time-line docker to order them. Works in all color spaces and depths as well!
• Onion skinning – This allows you to have an overlay of the previous and next frames, an important assistant when going from rough animation to smooth animation!
• Importing image sequence – Import any set of images as an animated layer, automatically sorted by naming scheme.
• Exporting image sequence – Export the whole animation as an image sequence, for further processing in other programs.
• New dockers – timeline docker, animation docker, and animation workspace
• CSV import and export – for layered animation, for use with TV-paint, or Blender via a plugin, courtesy of Laszlo Fazekas
• Spriter scml exporter – Make the base image in Krita and then export it to this powerful cut-out animation tool for games.
• Caching for Animation playback – Proper animation playback, in all sorts of frame-rates, relative speed-ups
• Instant Preview for Big canvases! – Utilizing the power of OpenGL 3.0 you can now draw smoothly with 1000 pixel width brushes!
• Frame dropping – For slower devices, we implemented frame-dropping, so that you can always see your animation at real-time speed!
• Simplified merging – One hotkey to rule them all!
• Multi-Layer Mania – Krita 2.9 had multi-layer selection and dragging and dropping. We spent this release expanding this functionality with moving, on canvas-selecting, merging, duplicating and more!
• Quick select layers – Select All/Visible/Locked layers, or select them on-canvas via Shift+R+Click
• Mass editing layer properties – Instantly rename multiple layers, or change their blending mode, or opacity, or any other property.
• Group multiple layers – Or create Clipping Groups or just ungrouping with hotkeys.
• Clearer Layers – Condensed layers means you can see more at a time
• Color Coding – Right-clicking a layer gives you the ability to color code a layer
• Filter layers by color – You can choose to only see all blue layers, or green layers, or only blue and green layers with layer filtering.
• Switch Shortcut Layout – If you are familiar with Photoshop or Paint Tool SAI’s shortcuts, you can switch the shortcut system. Accessed from the Settings → Configure Shortcuts.
• Saving and loading shortcut schemes – Share you shortcuts with friends and collegues!
• A better shortcut layout – Short cuts are now grouped!
• Selection shortcuts switch – There is a new setting in the preferences that allow you to switch the Alt and Control modifiers for the selection shortcuts
• Luminance based hotkeys – The Lighter and Darker actions are now color managed and use true luminance where ever possible.
• Redder/Greener/Bluer/Yellower/Hue/Saturation Hotkeys – New configurable actions for modifying a color’s hue, saturation, making it redder, greener, bluer and yellower.
• Grids and Guides docker – A Unified docker for grids and guides!
• Customize the look of Grids and Guides – Toggle Grid and Guide visibility separate and edit their look!
• Grids and Guides saved per document – None of this global grid nonsense, and you can now set-up templates.
• Snapping – The vast majority of tools now support snapping to grids and guides.
• Fast access to snap-settings! – snap-settings pop up on Shift+S.
• Improved popup palette – for easier reading of the preset-icons
• Compacter New Document Screen – The new document menu has been modified to fit on tiny laptop screens.
• The color space browser heavily improved – you can now get feedback about color lookup table profiles like those of the CMYK space as well as their Tone Response/Reproduction/Transfer curve.
• Loading screen – Krita now shows you what it is loading on the start-up screen!
• Improved GUI – The Crop tool, Assistant editing tool and the Straight line tool got an improved user interface, and the Straight line tool’s on-canvas preview has been improved as well.
• Gradient map filter – It wasn’t planned, but Spencer Brown surprised us all and added it! It is still in progress, so temporarily disabled for the filterlayers.
• More Models for the HSV adjustment filter – HSV adjustment now supports HSI, HSY and YCrCb for the model
• Multi-threading with G’MIC – Make use of all your processor cores for all those fancy G’MIC filters. G’MIC is also a lot more stable now.
• Added “Greater” blending mode – change the way you paint on transparent layers (example shown to the side)! Made by Nicolas Guttenberg’s dedicated tinkering!
• GBR and GIH import/export – Gimp’s brush format can now be saved and opened directly by Krita. You don’t have to rely on the make-brush menu in the predefined brush-tab.
• Move Tool Improvements – Move layer content with arrow keys, and configure the increments in all important unit-sizes!
• True luminance in the advanced selector – The HSY space color pickers are now linearised before their luma is crunched. The Gamma can be manually configured, making this picker possible to give true luminosity!
• Smoother Color Smudge – Improved the smoothness of the color smudge strokes in dulling mode.
• New pixel art presets – No need to create your own now.
• New cursor options – Added a single pixel black and white. For those who REALLY need precision.
• Removed the grids tool and the perspective grid tool. You can use the perspective grid assistant for the latter, and even get more features. For the grid tool we have replaced it with the grids and guides docker!
• Added zoom and pan tools! – These tools revived themselves during the port, and we let them be for those preferring these tools separately.
• Renewed Tablet Handling – We rewrote the entire tablet and input system, supporting a wide variety of drawing tablets using Qt5 now.
• Linux AppImages – Now different Linux users can have the latest version without waiting on their distribution repository updates.
• Changing Compilers for Windows – We are building and cross-compiling with MinGW instead of MSVC now. This will allow us to use VC 1.2 (a math library for speed) in the future, but more importantly, make a stable, multi-threaded version of G’MIC, and the ability to import and export PDFs with the poppler library. With this change, we aren’t able to use MSVC any longer.
• Faster startup time – More resources are loaded and managed internally. This means faster start times.
• Building Instructions – Improved building instructions for developers and technology enthusiasts.
• Build Krita on Windows and OSX – Building Krita from the source code is easier than ever. It was significantly more difficult in Krita 2.9. The instructions are in the 3rd party folder in the source code for how to do it. We even have artists building on Windows!

How to Install Krita 3.0 (Digital Painter) on Linux Mint and Ubuntu Derivatives via PPA :

$ sudo add-apt-repository ppa:dimula73/krita

$ sudo apt-get update

$ sudo apt-get install krita3-testing

$ sudo apt-get remove krita