diff --git a/CHANGELOG b/CHANGELOG
index f1177762..6fac5dbd 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,8 @@
+1.1.0
+-----
+* Update MicroPython version to 1.0
+
+
0.1.0
-----
diff --git a/RELEASE_TODO.rst b/RELEASE_TODO.rst
index 560f2267..24fde763 100644
--- a/RELEASE_TODO.rst
+++ b/RELEASE_TODO.rst
@@ -1,9 +1,10 @@
Checklist for Releases
======================
-* Update the version number in the editor.html file.
+* Update the editor version number in the editor.html file.
* Update the CHANGES.rst file with English description of changes made.
* If required, update the firmware.hex file to the correct version of the "vanilla" MicroPython runtime used in this release.
+* If required, update the MicroPython version number in the editor.html file.
* Create a tagged release using GitHub.
* Inform those who maintain the versioning manifest. Currently this is @jaustin at the micro:bit foundation.
diff --git a/editor.html b/editor.html
index d3cba3e2..7e6f5c13 100644
--- a/editor.html
+++ b/editor.html
@@ -70,7 +70,8 @@