v2.3.0

• Added :touch option to acts_as_tree relation. See #40 — @mbenitezm
• Fix tests on Rails 3.x with Ruby 1.9.2. See #41 — @felixbuenemann

v2.2.0

• Added TreeWalker.walk_tree instance method. See #32, #37, #38 — @felixbuenemann, @genewoo
• Fix tests on rails 3.x. See #36 — @marshall-lee

v2.1.0

• Added TreeWalker. See #30 — @545ch4

v2.0.0

• Renamed Presentation module to TreeView, see #27, #28 — @felixbuenemann

v1.6.1

• Readme Improvements, see #26 — @schlick
• Improvements and Fixes for counter cache (fix counter_cache: true). See #24, #25 — @dv

v1.6.0

• Added new leaves method. See #23 — @agentydragon

v1.5.1

• Fixing descendants modification bug. See #20 — @amerine, @tmuerell

v1.5.0

• Added new descendants method — @adamkleingit
• Fixed warning message — @akicho8

v1.4.0

• Presentation#tree_view — @rainchen
• root? && leaf? methods. — @xuanxu

v1.3.0

• Rails 4.0 Support! — @mischa78
• Readme Fixes — @mischa78 & @seanhussey