docs: Add versionadded for run_once

hughdbrown · Sep 2, 2014 · 11d5656 · 11d5656
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commit 11d5656
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diff --git a/docsite/rst/playbooks_delegation.rst b/docsite/rst/playbooks_delegation.rst
@@ -135,6 +135,8 @@ will need to ask for a passphrase.
 Run Once
 ````````
 
+.. versionadded:: 1.7
+
 In some cases there may be a need to only run a task one time and only on one host. This can be achieved
 by configuring "run_once" on a task::