ChangeLog.md in ruby-nmap-0.5.0 vs ChangeLog.md in ruby-nmap-0.5.1

@@ -1,4 +1,9 @@
+### 0.5.1 / 2012-05-27
+
+* Replaced ore-tasks with
+  [rubygems-tasks](https://github.com/postmodern/rubygems-tasks#readme).
+
 ### 0.5.0 / 2011-04-11
 
 * Require nokogiri ~> 1.3.
 * Require rprogram ~> 0.3.
 * `ip_scan` in {Nmap::Task} should map to `-sO` (thanks corvus).