Why we have to pay for the parallels tools update ? Most softwares that I buy for my MAC will get the free update ... I bought version 9 then I upgraded to ver. 10 to fix linux issues and now I have to pay again to get the latest version of Parallels 11 to fix new ubuntu LTS version! Parallels tools update should always be covered with the original buy . I agree to pay for new features but not for patch .