QGIS Changelog: Entries -

Total count for features in layer, as well as per symbol
Vector layers in edit mode now have a red pencil to indicate uncommitted (unsaved) edits
Active layer is now underlined, to indicate it in multi-layer selections or when there is no selection
Clicking in non-list-item whitespace now clears the selection
Right-clicks are now treated as left-clicks prior to showing the contextual menu, allowing for one click instead of two
Groups and layers can optionally be in a bold font style
Raster layer generated preview icons can now be turned off, for projects where such rendering may be slow