diff --git a/macbuild/ReadMe.md b/macbuild/ReadMe.md
index 1ca45ab36..4f87e9616 100644
--- a/macbuild/ReadMe.md
+++ b/macbuild/ReadMe.md
@@ -1,4 +1,4 @@
-Relevant KLayout version: 0.26.4
+Relevant KLayout version: 0.26.5
 
 # 1. Introduction
 This directory **`macbuild`** contains different files required for building KLayout (http://www.klayout.de/) version 0.26.1 or later for different 64-bit Mac OSXs including:
@@ -26,6 +26,11 @@ Alternatively, you can use "Qt5" from Homebrew (https://brew.sh/) which is usual
 $HOME/opt/anaconda3/pkgs/qt-{version}
 ```
 
+If you have installed Anaconda3 under $HOME/opt/anaconda3/, make a symbolic link:
+```
+/Applications/anaconda3/ ---> $HOME/opt/anaconda3/
+```
+
 # 3. Script language support: Ruby and Python
 By default, supported script languages, i.e., Ruby and Python, are those standard ones bundled with the OS.<br>
 As for Catalina (10.15),
@@ -220,8 +225,8 @@ $ cd /where/'build.sh'/exists
 $ ./makeDMG4mac.py -p ST-qt5MP.pkg.macos-Catalina-release-RsysPsys -m
 ```
 This command will generate the two files below:<br>
-* **`ST-klayout-0.26.4-macOS-Catalina-1-qt5MP-RsysPsys.dmg`**      ---(1) the main DMG file
-* **`ST-klayout-0.26.4-macOS-Catalina-1-qt5MP-RsysPsys.dmg.md5`**  ---(2) MD5-value text file
+* **`ST-klayout-0.26.5-macOS-Catalina-1-qt5MP-RsysPsys.dmg`**      ---(1) the main DMG file
+* **`ST-klayout-0.26.5-macOS-Catalina-1-qt5MP-RsysPsys.dmg.md5`**  ---(2) MD5-value text file
 
 # Known issues
 Because we assume some specific versions of non-OS-standard Ruby and Python, updating MacPorts, Homebrew, or Anaconda3 may cause build- and link errors.<br>
diff --git a/macbuild/Resources/script-bundles.zip b/macbuild/Resources/script-bundles.zip
index a6e85de68..874b343d9 100644
Binary files a/macbuild/Resources/script-bundles.zip and b/macbuild/Resources/script-bundles.zip differ
diff --git a/macbuild/build4mac_env.py b/macbuild/build4mac_env.py
index b07d08e45..033e574d9 100755
--- a/macbuild/build4mac_env.py
+++ b/macbuild/build4mac_env.py
@@ -42,11 +42,12 @@ Qt5Brew = { 'qmake' : '/usr/local/opt/qt/bin/qmake',
             'deploy': '/usr/local/opt/qt/bin/macdeployqt'
           }
 
-# Qt5 bundled with anaconda3 installed under $HOME/opt/anaconda3/
-#  installed by the standard installation package
+# Qt5 bundled with anaconda3 installed under /Applications/anaconda3/
+# The standard installation deploys the tool under $HOME/opt/anaconda3/.
+# If so, you need to make a symbolic link: /Applications/anaconda3 ---> $HOME/opt/anaconda3/
 # [Key Type Name] = 'Qt5Ana3'
-Qt5Ana3 = { 'qmake' : '%s/opt/anaconda3/bin/qmake' % MyHome,
-            'deploy': '%s/opt/anaconda3/bin/macdeployqt' % MyHome
+Qt5Ana3 = { 'qmake' : '/Applications/anaconda3/bin/qmake',
+            'deploy': '/Applications/anaconda3/bin/macdeployqt'
           }
 
 #-----------------------------------------------------
@@ -126,12 +127,13 @@ Ruby27Brew      = { 'exe': '%s/bin/ruby' % HBRuby27Path,
                     'lib': '%s/lib/libruby.2.7.dylib' % HBRuby27Path
                   }
 
-# Ruby 2.5 bundled with anaconda3 installed under $HOME/opt/anaconda3/ *+*+*+ EXPERIMENTAL *+*+*+
-#  install with 'conda install ruby'
+# Ruby 2.5 bundled with anaconda3 installed under /Applications/anaconda3/ *+*+*+ EXPERIMENTAL *+*+*+
+# The standard installation deploys the tool under $HOME/opt/anaconda3/.
+# If so, you need to make a symbolic link: /Applications/anaconda3 ---> $HOME/opt/anaconda3/
 # [Key Type Name] = 'Ana3'
-RubyAnaconda3   = { 'exe': '%s/opt/anaconda3/bin/ruby' % MyHome,
-                    'inc': '%s/opt/anaconda3/include/ruby-2.5.0' % MyHome,
-                    'lib': '%s/opt/anaconda3/lib/libruby.2.5.1.dylib' % MyHome
+RubyAnaconda3   = { 'exe': '/Applications/anaconda3/bin/ruby',
+                    'inc': '/Applications/anaconda3/include/ruby-2.5.0',
+                    'lib': '/Applications/anaconda3/lib/libruby.2.5.1.dylib'
                   }
 
 # Consolidated dictionary kit for Ruby
@@ -219,12 +221,13 @@ Python37Brew    = { 'exe': '%s/Versions/3.7/bin/python3.7m' % HBPython37Framewor
                     'lib': '%s/Versions/3.7/lib/libpython3.7m.dylib' % HBPython37FrameworkPath
                   }
 
-# Python 3.7 bundled with anaconda3 installed under $HOME/opt/anaconda3/ *+*+*+ EXPERIMENTAL *+*+*+
-#  installed by the standard installation package
+# Python 3.7 bundled with anaconda3 installed under /Applications/anaconda3/ *+*+*+ EXPERIMENTAL *+*+*+
+# The standard installation deploys the tool under $HOME/opt/anaconda3/.
+# If so, you need to make a symbolic link: /Applications/anaconda3 ---> $HOME/opt/anaconda3/
 # [Key Type Name] = 'Ana3'
-PythonAnaconda3 = { 'exe': '%s/opt/anaconda3/bin/python3.7m' % MyHome,
-                    'inc': '%s/opt/anaconda3/include/python3.7m' % MyHome,
-                    'lib': '%s/opt/anaconda3/lib/libpython3.7m.dylib' % MyHome
+PythonAnaconda3 = { 'exe': '/Applications/anaconda3/bin/python3.7m',
+                    'inc': '/Applications/anaconda3/include/python3.7m',
+                    'lib': '/Applications/anaconda3/lib/libpython3.7m.dylib'
                   }
 
 # Consolidated dictionary kit for Python