From BlenderWiki

Summary Of Work for 5 Months from May to September

Over the past few months I worked a lot on 2.5x maintenance and general fixes since there was no shortage of tasks to do.

Note: Had 2 weeks holiday and spent one week working on X3D export for BioSkill which had some overlap with general X3D bugfixing and improvements.

For details see:

http://wiki.blender.org/index.php/User:Ideasman42#Week_36_.28May_2nd.29

Summary of Import/Export Work

Note that this work was mostly maintenance however I did some some focused time making improvements to FBX/X3D support.

• added axis conversion to X3D/3DS/OBJ/FBX formats,
  this lets you specify the Up/Forward axis on import/export,
  this replaced less useful rotation options like 'Rotate X90' which OBJ used.
• add ability to apply rotation on a BVH imported rig (which defaulted to standing sideways)
• fixed exporting OBJ/X3D/FBX dupli-instances

• BVH
  • export option to only write transform for the root bone
    (needed for compatibility with some applications).

• X3D
  • fix for exporting collision option - use collision modifier now.
  • export XML names are now escaped correctly
  • export was writing invalid chars in ID's
  • export added IndexedTriangleSet support.
  • export support for writing normals.
  • export added support for writing parent/child hierarchy.

• FBX fixes...
  • fix exporting with invalid vertex groups,
  • fix for FBX export treating actions with modifiers as 600,000 frames long.
  • applied patch [#28118] from John Brown (jcbdigger)
    to the FBX exporter to add XNA compatibility,
    also made edits on the patch and corrected some errors.

• 3DS
  • fix exporting relative paths on windows.
  • write object transformation data.

Other Personal Projects

• added H3D export support to X3D, so GLSL shaders can display in H3D.
• ported Quake Map exporter from 2.4x (simple script easy to support).

Summary of Optimization's

• use hash lookups for operator/menu/panel types.
• use vertex arrays for drawing all buttons (rather than immediate mode).
• editmesh solid and wireframe face drawing (on my system gives 1.5x - 2x speedup), merged into bmesh branch too.
• speedup drawing ascii text and dont use inefficient opengl glGet* functions for drawing each character.
• speed up python function calls by using own built-in callable type (speeds up the UI which is written in python)

Summary of Documentation

Wrote new sections to our API docs.

• http://www.blender.org/documentation/blender_python_api_2_59_3/info_gotcha.html
• http://www.blender.org/documentation/blender_python_api_2_59_3/info_tips_and_tricks.html

Wiki Docs

• Autodesk FBX (updated from 2.4x docs) http://wiki.blender.org/index.php/Extensions:2.5/Py/Scripts/Import-Export/Autodesk_FBX
• Wavefront OBJ Import/Export docs http://wiki.blender.org/index.php/Extensions:2.5/Py/Scripts/Import-Export/Wavefront_OBJ

Summary of Review Work

• Reviewed VertexWeightModifier branch (worked on the branch and made changes needed for merge)
• Reviewed Weight Paint Branch branch (gsoc) (worked on the branch and made changes needed for merge)
• Reviewed Translation branch and worked on translation with python/rna and scripts for getting translations.

... some reviews are quite straightforward, these ones ended up taking some days each.

Bugfixing

• Bugfix stats* (from weekly reports / commit logs)
• 151 - fixed reported bugs
• 184 - fixed unreported bugs
• 335 - total.

note: doesn't include fixes for own recent mistakes :), also doesn't include fixes to the buildsystem.