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pkg/yqlib/doc/operators/eval.md

@@ -6,6 +6,12 @@ Use `eval` to dynamically process an expression - for instance from an environme
 
 Tip: This can be useful way parameterise complex scripts.
 
+{% hint style="warning" %}
+Note that versions prior to 4.18 require the 'eval/e' command to be specified. 
+
+`yq e <exp> <file>`
+{% endhint %}
+
 ## Dynamically evaluate a path
 Given a sample.yml file of:
 ```yaml