README.md in rsolr-client-cert-0.5.0 vs README.md in rsolr-client-cert-0.5.1

@@ -34,6 +34,7 @@
   that is fine but bump version in a commit by itself I can ignore when I pull.
 * Send me a pull request. Bonus points for topic branches.
 
 ## Version History
 
-- <b>0.5.0</b> Initial release
+- <b>0.5.0</b> Initial release
+- <b>0.5.1</b> Add additional HTTP method support, as well as all RSolr request_context parameters
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