Linux Mint does not offer a user-friendly way to upgrade between releases
1) The version and edition of Linux Mint you are using (if you are not sure, open a terminal and run "mintwelcome").
Any and all. For example Linux Mint 13, 14, 15.
2) What you did for the problem to happen, and how to reproduce it.
Realized that Linux Mint, for as much user-friendliness it offers, fails to offer an acceptable user-friendly upgrade path between releases.
3) What happened.
Upgrading between releases of Linux Mint requires either:
a) reinstalling every piece of software - this is very time consuming!
b) using a hack-ish method of sed'ing your sources and praying to your gods that it succeeds without leaving your system in an unusable state
4) What you expected to happen instead.
Linux Mint to support upgrading between releases without having to do any of the two options above.. just like Fedora, Ubuntu, Windows, OSX, etc.
5) If the problem happened once, sometimes, or always.