patch 8.1.0870: Vim doesn't use the new ConPTY support in Windows 10 commit https://github.com/vim/vim/commit/aa5df7e3127dff6b7336df0903f5c569a40eb174 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 3 14:53:10 2019 +0100 patch 8.1.0870: Vim doesn't use the new ConPTY support in Windows 10 Problem: Vim doesn't use the new ConPTY support in Windows 10. Solution: Use ConPTY support, if available. (Nobuhiro Takasaki, closes https://github.com/vim/vim/issues/3794)

--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -6738,6 +6738,10 @@ f_has(typval_T *argvars, typval_T *rettv
 	else if (STRICMP(name, "terminal") == 0)
 	    n = terminal_enabled();
 #endif
+#if defined(FEAT_TERMINAL) && defined(WIN3264)
+	else if (STRICMP(name, "conpty") == 0)
+	    n = use_conpty();
+#endif
     }
 
     rettv->vval.v_number = n;