commit b61a00678527bceb22a222188a230be03d6cc5a7
author Mishal Shah <shahmishal@users.noreply.github.com> Sun Jul 30 22:15:47 2017 -0700
committer GitHub <noreply@github.com> Sun Jul 30 22:15:47 2017 -0700
tree 313aa0bf8759c7274c8eda8ef6329b03fc1ee664
parent 19d29531fd35a4b46e4b7bd6b06b13a8469d6ad8

Update Xcode version in the README

README.md

diff --git a/README.md b/README.md
index 3c546bc..d7ddffb 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@
 macOS, Ubuntu Linux LTS, and the latest Ubuntu Linux release are the current
 supported host development operating systems.
 
-For macOS, you need [Xcode 9.0 beta 2](https://developer.apple.com/xcode/downloads/).
+For macOS, you need [Xcode 9.0 beta 4](https://developer.apple.com/xcode/downloads/).
 
 For Ubuntu, you'll need the following development dependencies: