diff --git a/cicecore/version.txt b/cicecore/version.txt
index 083549d70..b5b0c4a76 100644
--- a/cicecore/version.txt
+++ b/cicecore/version.txt
@@ -1 +1 @@
-CICE 6.5.1
+CICE 6.6.0
diff --git a/doc/source/conf.py b/doc/source/conf.py
index fec9406c0..86760baaa 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -65,9 +65,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = u'6.5.1' 
+version = u'6.6.0' 
 # The full version, including alpha/beta/rc tags.
-version = u'6.5.1' 
+version = u'6.6.0' 
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/icepack b/icepack
index 286630fde..379252056 160000
--- a/icepack
+++ b/icepack
@@ -1 +1 @@
-Subproject commit 286630fdecc8efc4dcf4bd7ecf2315101c69c391
+Subproject commit 3792520561cf9419082ef41f9f0dffd03edf2e43