Update ChangeLog for 2.2.1.
diff --git a/jemalloc/ChangeLog b/jemalloc/ChangeLog
index 6db63db..7b262c9 100644
--- a/jemalloc/ChangeLog
+++ b/jemalloc/ChangeLog
@@ -6,6 +6,13 @@
http://www.canonware.com/cgi-bin/gitweb.cgi?p=jemalloc.git
git://canonware.com/jemalloc.git
+* 2.2.1 (March 30, 2011)
+
+ Bug fixes:
+ - Implement atomic operations for x86/x64. This fixes compilation failures
+ for versions of gcc that are still in wide use.
+ - Fix an assertion in arena_purge().
+
* 2.2.0 (March 22, 2011)
This version incorporates several improvements to algorithms and data