I am wondering why distributions based on Debian, like Ubuntu or Mint don't have newest Qt - 5.5 - version in repository. I must download it from page to have 5.5, there is only 5.2 in repo.
I know that Debian has stable, testing and unstable releases, but distro's like Linux Mint have a much newer versions of many packages. Why this one is a little obsolete?
Qt 5.2.0 was released over 2 years ago, 5.2.1 - 1 year and 10 months ago. It looks for sufficient time that the next version should already be in the repository.