CHANGELOG.markdown in scout-5.5.8 vs CHANGELOG.markdown in scout-5.5.9.pre

@@ -1,4 +1,8 @@
+# 5.5.9
+
+* Locking data file when writing.
+
 # 5.5.8
 
 * Passing server_name for install + test commands so https_proxy is used.
 * Resetting history file when then client key changes
 
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