From 27ab7fa20044751fef460bb06ab5c44e2ab369de Mon Sep 17 00:00:00 2001
From: Ryan Curtin <ryan@ratml.org>
Date: Thu, 13 Apr 2017 15:24:53 -0400
Subject: [PATCH] Update history.

---
 HISTORY.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/HISTORY.md b/HISTORY.md
index e5883ec98b..5541f6326d 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,11 @@
 ### mlpack ?.?.?
 ###### ????-??-??
 
+### mlpack 2.2.1
+###### 2017-04-13
+  * Compilation fix for mlpack_nca and mlpack_test on older Armadillo versions
+    (#984).
+
 ### mlpack 2.2.0
 ###### 2017-03-21
   * Bugfix for mlpack_knn program (#816).