Get it here, or look at the new patches.
Release Notes
Bug fixes
Make sure all document-level event handlers are registered on the document that the editor is part of.
Fix issue that prevented edits whose origin starts with + from being combined in history events for an editor-less document.
multiplex addon: Improve handling of indentation.
merge addon: Use CSS :after element to style the scroll-lock icon.
javascript-hint addon: Don’t provide completions in JSON mode.
continuelist addon: Fix numbering error.
show-hint addon: Make fromList completion strategy act on the current token up to the cursor, rather than the entire token.
markdown mode: Fix a regexp with potentially exponental complexity.
New features
New theme: lucario.