The changes from 0.9 is mainly that the extension now supports the (currently) latest
rubocop has often breaking changes so previously
rubocop-sketchup has been locked to only with a single
rubocop version. But
rubocop-sketchup has been tested to work with
rubocop 0.69-0.74. Hopefully that will lead to less update friction.
Notable change with
rubocop 0.69 is that it dropped compatibility for Ruby 2.2. (Like many other gems these days.) So you’ll need to have at least Ruby 2.3 or newer installed on your system.