I'm using Ubuntu 15.04 which I've downloaded and installed recently. How can I get packages for up-to-date versions of software? For example I can only find g++ up to 4.9, or Boost up to 1.55. g++5.1 was released more than a month ago. I have some packages like
git which is just 2.1.4 compared to the latest release of 2.4.2.
I found a few sources discussing "Software and Updates" settings. I've enabled updates from all four sources (
vivid-backports) but this has not made any difference. I also found some sources about manually editing your sources file in /etc, but I also found this to be ineffective.
How can I find some reasonably up-to-date packages for Ubuntu? Or does Ubuntu simply not ship any updated packages from any source and I'll have to manually track down new sources for every individual piece of software that I want to keep updated?