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3.0 (2012-07-07)

   - new export interface similar to the import API. 
   - Supported export formats: Collada, OBJ, PLY and STL
   - added new import formats: XGL/ZGL, M3 (experimental)
   - new postprocessing steps: Debone
   - vastly improved IFC (Industry Foundation Classes) support
   - introduced API to query importer meta information (such as supported
       format versions, full name, maintainer info).
   - reworked Ogre XML import
   - C-API now supports per-import properties


   - hundreds of bugfixes in all parts of the library
   - unified naming and cleanup of public headers
   - improved CMake build system
   - templatized math library
   - reduce dependency on boost.thread, only remaining spot
     is synchronization for the C logging API 

   - renamed headers, export interface, C API properties and meta data
     prevent compatibility with code written for 2.0, but in 
     most cases these can be easily resolved
   - Note: 3.0 is not binary compatible with 2.0

2.0 (2010-11-21)

   - Add support for static Blender (*.blend) scenes
   - Add support for Q3BSP scenes
   - Add a windows-based OpenGL sample featuring texturing & basic materials
   - Add an experimental progress feedback interface.
   - Vastly improved performance (up to 500%, depending on mesh size and
     spatial structure) in some expensive postprocessing steps
   - AssimpView now uses a reworked layout which leaves more space
     to the scene hierarchy window
   - Add C# bindings ('Assimp.NET')
   - Keep BSD-licensed and otherwise free test files in separate 
     folders (./test/models and ./test/models-nonbsd).

   - Many Collada bugfixes, improve fault tolerance
   - Fix possible crashes in the Obj loader
   - Improve the Ogre XML loader
   - OpenGL-sample now works with MinGW
   - Fix Importer::FindLoader failing on uppercase file extensions
   - Fix flawed path handling when locating external files
   - Limit the maximum number of vertices, faces, face indices and 
     weights that Assimp is able to handle. This is to avoid
     crashes due to overflowing counters.
   - Updated XCode project files
   - Further CMAKE build improvements

   - Add data structures for vertex-based animations (These are not
     currently used, however ...)
   - Some Assimp::Importer methods are const now.

1.1 (2010-04-17)
This is the list of relevant changes from the 1.0 (r412) release to 1.1 (r700).

  - Vastly improved Collada support
  - Add MS3D (Milkshape 3D) support
  - Add support for Ogre XML static meshes
  - Add experimental COB (TrueSpace) support
  - Automatic test suite to quickly locate regressions
  - D bindings (`dAssimp`)
  - Python 2.n bindings (`PyAssimp`)
  - Add basic support for Unicode input files (utf8, utf16 and utf32)
  - Add further utilities to the `assimp` tool (xml/binary dumps, quick file stats)
  - Switch to a CMAKE-based build system including an install target for unix'es
  - Automatic evaluation of subdivision surfaces for some formats.
  - Add `Importer::ReadFileFromMemory` and the corresponding C-API `aiReadFileFromMemory`
  - Expose further math utilities via the C-API (i.e. `aiMultiplyMatrix4`)

  - Move noboost files away from the public include directory
  - Many, many bugfixes and improvements in existing loaders and postprocessing steps
  - Documentation improved and clarified in many places.
  - Add a sample on using Assimp in conjunction with OpenGL

  - Distribution/packaging: comfortable SDK installer for Windows
  - Distribution/packaging: improved release packages for other architectures

  - Resolve problems with clashing heap managers, STL ABIs and runtime libraries (win32)
  - Fix automatic detection of file type if no file extension is given
  - Improved exception safety and robustness, prevent leaking of exceptions through the C interface
  - Fix possible heap corruption due to material properties pulled in incorrectly
  - Avoid leaking in certain error scenarios
  - Fix 64 bit compatibility problems in some loaders (i.e. MDL)

  - None -

 - Change quaternion orientation to suit to the more common convention (-w).
 - aiString is utf8 now. Not yet consistent, however.