prepare for 2.8.10
diff --git a/release-notes/VERSION b/release-notes/VERSION
index b97b2df..a10c6f8 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -3,7 +3,7 @@
 === Releases ===
 ------------------------------------------------------------------------
 
-2.8.10 (not yet released)
+2.8.10 (24-Aug-2017)
 
 #1657: `StdDateFormat` deserializes dates with no tz/offset as UTC instead of
   configured timezone