commit https://github.com/vim/vim/commit/8b5f65a527c353b9942e362e719687c3a7592309 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 1 19:26:12 2015 +0200 patch 7.4.849 Problem: Moving the cursor in Insert mode starts new undo sequence. Solution: Add CTRL-G U to keep the undo sequence for the following cursor movement command. (Christian Brabandt)

README_src.txt for version 7.4 of Vim: Vi IMproved.

The source archive contains the files needed to compile Vim on Unix systems.
It is packed for Unix systems (NL line separator).

For more information, see the README.txt file that comes with the runtime
archive (vim-7.4-rt.tar.gz).  To be able to run Vim you MUST get the runtime
archive too!