patch 8.1.0747: map() with a bad expression doesn't give an error commit https://github.com/vim/vim/commit/ce9d50df07402cb8e196537a9c4505845adecabc Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 14 22:22:29 2019 +0100 patch 8.1.0747: map() with a bad expression doesn't give an error Problem: map() with a bad expression doesn't give an error. (Ingo Karkat) Solution: Check for giving an error message. (closes https://github.com/vim/vim/issues/3800)

README_os2.txt for version 8.1 of Vim: Vi IMproved.

This file used to explain the installation of Vim on OS/2 systems.
However, support for OS/2 has been removed in patch 7.4.1008.
See "README.txt" for general information about Vim.