1   Upgrading to 2.0

• The tree renderers have been separated from the tree representation. Horde_Tree represents a tree structure. The Horde_Tree_Render_* classes are the actual tree renderers.
• Horde_Tree::factory() is now Horde_Tree_Renderer::factory() and has a different signature.
• The Horde_Tree_Renderer constructor has a different signature than the old Horde_Tree constructor.
• The Horde_Tree::EXTRA_* constants are now called Horde_Tree_Renderer::EXTRA_*.
• Horde_Tree::addNode() takes a single hash as the parameter now.