diff --git a/scripts/calibre-install-latest-rpi.sh b/scripts/calibre-install-latest-rpi.sh
index ada054c88..d91f9439d 100755
--- a/scripts/calibre-install-latest-rpi.sh
+++ b/scripts/calibre-install-latest-rpi.sh
@@ -3,18 +3,20 @@
 # Thanks to Jerry Vonau (https://github.com/jvonau) who made this critical
 # breakthrough possible!
 #
-# Worked up to Calibre 3.23 from May 2018.
-# Calibre 3.24 and 3.25 fail to "apt install" in June 2018:
+# Worked up to Calibre 3.23 from May 2018, and again with 3.26 in June 2018.
+# Whereas Calibre 3.24 and 3.25 failed to "apt install" in June 2018:
 #
 #   The following packages have unmet dependencies:
 #    calibre : Depends: python-pyqt5 (>= 5.10.1+dfsg-2) but 5.10.1+dfsg-1+rpi1 is to be installed
 #   E: Unable to correct problems, you have held broken packages.
 #
-# Debian approach (calibre-install-latest.sh) is the workaround for now:
+# Debian approach (calibre-install-latest.sh) was the interim workaround in
+# mid-June 2018, which did install Calibre 3.24 & 3.25 at that time, however
+# this prevented resulting IIAB microSD's from booting in RPi Zero W:
 #
-#   https://github.com/iiab/iiab/pull/833
+#   https://github.com/iiab/iiab/pull/834
 # 
-# Calibre 3.25 is the latest available from testing as of 2018-06-10:
+# Calibre 3.26.x is the latest available from testing as of 2018-06-28:
 #
 #   http://raspbian.raspberrypi.org/raspbian/pool/main/c/calibre/
 #   http://archive.raspbian.org/raspbian/pool/main/c/calibre/