patch 8.1.0514: CTRL-W ^ does not work when alternate buffer has no name commit https://github.com/vim/vim/commit/1bbb61948342b5cf6e363629f145c65eb455c388 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 10 16:02:01 2018 +0100 patch 8.1.0514: CTRL-W ^ does not work when alternate buffer has no name Problem: CTRL-W ^ does not work when alternate buffer has no name. Solution: Use another method to split and edit the alternate buffer. (Jason Franklin)

README_src.txt for version 8.1 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-8.1-rt.tar.gz).  To be able to run Vim you MUST get the runtime
archive too!