diff --git a/HISTORY.textile b/HISTORY.textile
index 5c28c5c6a..33d006e38 100644
--- a/HISTORY.textile
+++ b/HISTORY.textile
@@ -1,4 +1,7 @@
 h3. 6.4.0 (2013-09-30)
+* Patch Hydra::AccessControlsEnforcement#escape_filter to support
+  group/role names containing colons. [David Chandek-Stark]
+* Fixed Solr field name [David Chandek-Stark]
 * Amended Hydra::User#groups to pass self to RoleMapper.roles in order to avoid
   redundant user lookup. Fixes #111. [David Chandek-Stark]
 * Moved controller mixins into concerns [Justin Coyne]
diff --git a/HYDRA_VERSION b/HYDRA_VERSION
index 1268fd97d..19b860c18 100644
--- a/HYDRA_VERSION
+++ b/HYDRA_VERSION
@@ -1 +1 @@
-6.4.0.rc5
+6.4.0
diff --git a/hydra-core/lib/hydra-head/version.rb b/hydra-core/lib/hydra-head/version.rb
index 84ce70de3..2fcb53c26 100644
--- a/hydra-core/lib/hydra-head/version.rb
+++ b/hydra-core/lib/hydra-head/version.rb
@@ -1,4 +1,4 @@
 module HydraHead
-  VERSION = "6.4.0.rc5"
+  VERSION = "6.4.0"
 end