v2.2

New features

• Added preview window for the buffer list
• Added ability to squash directories with a single child

New options

• buffers.squash_directories Squash directories.
• buffers.mappings.toggle_squash Toggle squashing.
• buffers.mappings.toggle_view Toggle view mode.

Changes

• Tree group separator visible by default.

Fixes

• Fixed tree getting tangled up in few occasions.
• Fixed inability to delete directory buffers in tree view.
• Various other minor fixes.