Main highlights for this release:
Initial support for Pixar's OpenSubdiv geometry subdivision technology.
A huge view-port performance boost.
Big file browser performance boost and arrow keys navigation support.
Node Auto-offset feature that helps organizing node layouts.
Absolute grid snapping in the 3D view.
Sculpting with tiled strokes.
Text effect strips for the sequencer, supporting subtitle export.
And: 100s of bug fixes and other improvements!
New Point Density texture.
Improvements for AMD GPUs (stability on Windows / Linux and compatibility with OSX El Capitan).
Camera zoom motion blur support.
Support for extended and clipped image texture extension.
View-port: The ongoing view-port project brought a big performance boost.
Node Editor: Auto-offset existing nodes when adding a new one.
Arrow-key navigation and selection.
Huge rework of internal code, now quicker & lighter.
It's now possible to display the correct (user edited) shortcuts of modal operations in the UI.
Two new tools: Flatten Faces and Edge Offset.
Data Transfer supports transferring data between equal meshes better.
Absolute grid snapping for the 3D view was added.
Support custom normals for the Displace Modifier.
Initial integration of the Pixar OpenSubdiv library.
Greatly improves view-port playback performance.
GPU tessellation support.
Improves edge sharpness.
New Text Effect for rendering text into sequencer output.
Exporting of text as subtitles.
Speed Effect can re-time scenes with subframe rendering.
Improved AltRMB Template-RMB.png selection behavior.
Freestyle NPR Rendering
Freestyle memory consumption was reduced.
New stroke modifiers were implemented.
Clean Channels tool was introduced that helps organizing channels.
A new add-on to create bone selection sets is bundled.
Plus, over 400 bug fixes for this new release of Blender 2.76, the FREE 3D modeling, animation, rendering and game engine. Go to the Blender website to download the new edition and find out more.