Update CHANGES.md (pandas-dev#403)

rkempter · richardbounds · commit 718a714ca12a · 2017-08-21T15:43:38.000+01:00
Add release date
diff --git a/CHANGES.md b/CHANGES.md
@@ -1,6 +1,6 @@
 ## Changelog
 
-### 1.51
+### 1.51 (2017-08-21)
   * Bugfix:  #397 Remove calls to deprecated methods in pymongo
   * Bugfix:  #402 Append to empty DF fails in VersionStore
 
