diff --git a/docs/_config.yml b/docs/_config.yml
index 10a16227aa..9e1d1b9d04 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -2,7 +2,7 @@ repository: pmd/pmd
 
 pmd:
     version: 6.6.0
-    date: 2018-??-??
+    date: 2018-07-29
 
 output: web
 # this property is useful for conditional filtering of content that is separate from the PDF.
diff --git a/docs/pages/release_notes.md b/docs/pages/release_notes.md
index 50643e2b71..f9191e21c4 100644
--- a/docs/pages/release_notes.md
+++ b/docs/pages/release_notes.md
@@ -4,7 +4,7 @@ permalink: pmd_release_notes.html
 keywords: changelog, release notes
 ---
 
-## ????? - 6.6.0-SNAPSHOT
+## 29-July-2018 - 6.6.0
 
 The PMD team is pleased to announce PMD 6.6.0.