Installing VIM 8

The latest VIM has been released, which includes some potentially neovim-killer features.

Release notes are here

Linux

git clone https://github.com/vim/vim.git
cd vim
make
sudo make install

Elementary OS (with clipboard support)

sudo apt-get install xorg-dev
git clone https://github.com/vim/vim.git
cd vim
# python-interp is not needed for clipboard support, but some plugins use it.
./configure --enable-pythoninterp
make
sudo make install

You can now remove xorg-dev:

sudo apt-get remove xorg-dev