diff --git a/mac/Build.txt b/mac/Build.txt
index 8aa27078f..845ae5b1c 100644
--- a/mac/Build.txt
+++ b/mac/Build.txt
@@ -3,36 +3,36 @@ is 10.6.  To build Audacity using Xcode 5.1 or newer, you need
 to extract the 10.6 SDK from an earlier version of Xcode.
 
 In the instructions below, Xcode 4.3.3 (for the 10.6 SDK) and
-Xcode 5.1.1 will be used.  Xcode 6.1.1 and 6.3 have been verified
-to work as well.
+Xcode 5.1.1 will be used.  Xcode 6.1.1, 6.3, 6.4.1, and 7.0
+have been verified to work as well.
 
-1)  Download Xcode 5.1.1 or greater and install it to /Applications
-2)  Download Xcode 4.3.3 and open it in Finder
-3)  Right click the "Xcode.app" bundle and select "Show Package Contents"
-4)  Navigate down the directories to get to:
+1) Download Xcode 5.1.1 or greater and install it to /Applications
+2) Download Xcode 4.3.3 and open it in Finder
+3) Right click the "Xcode.app" bundle and select "Show Package Contents"
+4) Navigate down the directories to get to:
 
-    Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/
+   Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/
 
-5)  Copy the MacOSX10.6.sdk folder to:
+5) Copy the MacOSX10.6.sdk folder to:
 
-    /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/
+   /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/
 
-Xcode is now ready.
+   Xcode is now ready.
 
-You must now build wxWidgets.  We currently require version 3.0.2, do download it from:
+6) Download wxWidgets.  We currently require version 3.0.2, which can be downloaded from:
 
    http://sourceforge.net/projects/wxwindows/files/3.0.2/wxWidgets-3.0.2.tar.bz2
 
-Once downloaded untar it (your browser may have already done this):
+7) Once the download is complete, untar it (your browser may have already done this):
 
    tar xf wxWidgets-3.0.2.tar.bz2
 
-A couple of fixes need to be applied wxWidgets:
+8) Apply the following fixes to wxWidgets:
 
    cd wxWidgets-3.0.2
    patch -p0 -i <path to Audacity source>/mac/wxMac_additions/wxMac-3.0.2-fixes.patch
 
-And finally build/install it:
+9) And finally build/install wxWidgets:
 
    sudo <path to Audacity source>/mac/build_wxwidgets
 
@@ -54,3 +54,4 @@ And install:
    cd gexttext-latest
    ./configure
    sudo make install
+