The Maine Secretary of State has posted new registration data, as of October 21. See it here. The percentages are Democratic 37.48%; Republican 30.06%; Green 3.88%; Libertarian .10%; independent and other 28.47%.
In June 2022 the percentages were: Democratic 35.52%; Republican 28.16%; Green 4.06%; Libertarian .06%; independent and other 32.20%.